11/19/04 19:59:05 hutals Logs in
11/19/04 19:59:29 hutals: Oops, wrong room. Where is the step 1 room?
11/19/04 19:59:34 hutals Joins Subroom USMLE_Step_1
11/19/04 20:03:05 Lorena Logs in
11/19/04 20:03:06 Lorena Joins Subroom USMLE_Step_1
11/19/04 20:03:23 [USMLE_Step_1] hutals: hey lor
11/19/04 20:03:25 [USMLE_Step_1] Lorena: hi hutals
11/19/04 20:03:42 [USMLE_Step_1] hutals: i hope everyone finds their way here ok
11/19/04 20:03:44 [USMLE_Step_1] Lorena:
11/19/04 20:03:57 [USMLE_Step_1] Lorena: i just clicked on chat and was tranfered
11/19/04 20:04:08 [USMLE_Step_1] hutals: do you have your speakers on?
11/19/04 20:04:25 medfan Logs in
11/19/04 20:04:30 medfan Joins Subroom USMLE_Step_1
11/19/04 20:04:34 [USMLE_Step_1] hutals: *evil*
11/19/04 20:04:39 [USMLE_Step_1] Lorena: lol
11/19/04 20:04:49 [USMLE_Step_1] medfan: wow, where are we?
11/19/04 20:05:02 [USMLE_Step_1] hutals: i love this new chat room
11/19/04 20:05:07 [USMLE_Step_1] hutals: hey medfan
11/19/04 20:05:08 zoya Logs in
11/19/04 20:05:09 zoya Joins Subroom USMLE_Step_1
11/19/04 20:05:16 [USMLE_Step_1] hutals: hey zoya
11/19/04 20:05:18 [USMLE_Step_1] medfan: hey hutals, lorena
11/19/04 20:05:23 [USMLE_Step_1] Lorena: still getting used to it
11/19/04 20:05:32 [USMLE_Step_1] zoya: hi
11/19/04 20:05:33 [USMLE_Step_1] hutals: *meow*
11/19/04 20:05:35 crusher Logs in
11/19/04 20:05:38 [USMLE_Step_1] Lorena: *bird*
11/19/04 20:05:38 crusher Joins Subroom USMLE_Step_1
11/19/04 20:05:48 jwls29 Logs in
11/19/04 20:05:49 [USMLE_Step_1] crusher: hello
11/19/04 20:05:49 [USMLE_Step_1] medfan: so why the uplift?
11/19/04 20:05:57 [USMLE_Step_1] hutals: do you all have your speakers on...this is hilarious
11/19/04 20:06:00 [USMLE_Step_1] Lorena: *welcome*
11/19/04 20:06:05 [USMLE_Step_1] crusher: yep
11/19/04 20:06:11 jwls29: hello everyone
11/19/04 20:06:19 [USMLE_Step_1] crusher: is this u lorena said welcome?
11/19/04 20:06:28 [USMLE_Step_1] medfan: i don't hear anything?
11/19/04 20:06:36 [USMLE_Step_1] Lorena: yes
11/19/04 20:06:38 [USMLE_Step_1] hutals: hey crush and jwls
11/19/04 20:06:47 [USMLE_Step_1] crusher: hey hutal
11/19/04 20:07:05 [USMLE_Step_1] crusher: how doi speak??
11/19/04 20:07:10 [USMLE_Step_1] hutals: *welcome* to the new chat room
11/19/04 20:07:10 jwls29 Joins Subroom USMLE_Step_1
11/19/04 20:07:19 [USMLE_Step_1] jwls29: hi everyone
11/19/04 20:07:25 [USMLE_Step_1] Lorena: you have an icon with a music sign
11/19/04 20:07:35 [USMLE_Step_1] Lorena: click on it and you will see the sounds you have
11/19/04 20:07:36 [USMLE_Step_1] medfan: *bleep* *whip*
11/19/04 20:07:40 [USMLE_Step_1] crusher: *welcome* *welcome*
11/19/04 20:07:46 kmonica26 Logs in
11/19/04 20:07:47 [USMLE_Step_1] medfan: this is cool!!!
11/19/04 20:07:49 [USMLE_Step_1] Lorena: *slap*
11/19/04 20:07:55 [USMLE_Step_1] Lorena: lol
11/19/04 20:07:57 kmonica26 Joins Subroom USMLE_Step_1
11/19/04 20:08:05 [USMLE_Step_1] crusher:
11/19/04 20:08:12 [USMLE_Step_1] hutals: i guess none of us can drift off anymore or else *whip* *whip*
11/19/04 20:08:17 [USMLE_Step_1] medfan: *evil*
11/19/04 20:08:22 [USMLE_Step_1] kmonica26: hi guys
11/19/04 20:08:27 [USMLE_Step_1] hutals: hey mon
11/19/04 20:08:33 [USMLE_Step_1] medfan: hi mon
11/19/04 20:08:34 [USMLE_Step_1] jwls29: *beep* *beep*
11/19/04 20:08:36 [USMLE_Step_1] Lorena: hi mon and everybody
11/19/04 20:08:41 [USMLE_Step_1] kmonica26: I got redirected to this chat room
11/19/04 20:08:47 [USMLE_Step_1] Lorena: me too
11/19/04 20:08:53 [USMLE_Step_1] medfan: *bird* *choochoo*
11/19/04 20:08:56 [USMLE_Step_1] hutals: you can pick colors too
11/19/04 20:09:04 [USMLE_Step_1] jwls29: *meow* *meow*
11/19/04 20:09:13 [USMLE_Step_1] Lorena: great
11/19/04 20:09:21 [USMLE_Step_1] jwls29: lol
11/19/04 20:09:27 [USMLE_Step_1] hutals: my cat heard that and is looking at me funny
11/19/04 20:09:27 [USMLE_Step_1] kmonica26: nice
11/19/04 20:09:31 [USMLE_Step_1] Lorena: *harp* *harp*
11/19/04 20:09:48 [USMLE_Step_1] medfan: *evil*
11/19/04 20:09:56 [USMLE_Step_1] Lorena: *evil*
11/19/04 20:09:57 [USMLE_Step_1] medfan: i LOVE this
11/19/04 20:10:07 [USMLE_Step_1] jwls29: *slap*
11/19/04 20:10:18 [USMLE_Step_1] Lorena: i am cracking up
11/19/04 20:10:19 [USMLE_Step_1] hutals: this is great
11/19/04 20:10:19 [USMLE_Step_1] kmonica26: *welcome*
11/19/04 20:10:34 [USMLE_Step_1] jwls29: *evil*
11/19/04 20:10:43 [USMLE_Step_1] Lorena:
11/19/04 20:11:18 [USMLE_Step_1] kmonica26: *)
11/19/04 20:11:29 [USMLE_Step_1] hutals: you can make things bigger and smaller, and there is a cut and paste thing to make it easier.....i can play with this all day
11/19/04 20:11:52 [USMLE_Step_1] medfan: :/
11/19/04 20:11:53 Lorena Logs Out
11/19/04 20:12:24 Lorena Logs in
11/19/04 20:12:24 Lorena Joins Subroom USMLE_Step_1
11/19/04 20:12:26 [USMLE_Step_1] hutals: i guess lorena tried to see what that door button does
11/19/04 20:12:33 [USMLE_Step_1] Lorena: ops
11/19/04 20:12:38 [USMLE_Step_1] Lorena: just playing around
11/19/04 20:13:16 jwls29 Logs Out
11/19/04 20:13:25 [USMLE_Step_1] hutals: even if you leave the room or get disconnected, the transcript still remains the same
11/19/04 20:13:46 [USMLE_Step_1] Lorena: i gues jwls did the same
11/19/04 20:14:11 jwls29 Logs in
11/19/04 20:14:22 jwls29 Joins Subroom USMLE_Step_1
11/19/04 20:14:53 jwls29 Logs Out
11/19/04 20:15:10 [USMLE_Step_1] hutals: ok, so today is pysio since next week is a short week....right?
11/19/04 20:15:16 [USMLE_Step_1] Lorena: yes
11/19/04 20:15:16 jwls29 Logs in
11/19/04 20:15:21 jwls29 Joins Subroom USMLE_Step_1
11/19/04 20:15:32 [USMLE_Step_1] hutals: we have general topics and excitable tissue to cover
11/19/04 20:15:37 [USMLE_Step_1] jwls29: well if u hit refresh, you get kicked off and have to sign in again
11/19/04 20:15:53 [USMLE_Step_1] Lorena: ok, didnt know that
11/19/04 20:16:00 [USMLE_Step_1] Lorena: but this chat sem to be faster too
11/19/04 20:16:04 [USMLE_Step_1] jwls29: yup
11/19/04 20:16:19 [USMLE_Step_1] jwls29: definitely faster
11/19/04 20:16:28 [USMLE_Step_1] hutals: i'm loving this new chat room. did you all check out the downloads and the new forums for usmle?
11/19/04 20:16:48 [USMLE_Step_1] jwls29: i tried doing that while in this room and got disconnected
11/19/04 20:17:02 [USMLE_Step_1] jwls29: is there anything in the download forum?
11/19/04 20:17:07 [USMLE_Step_1] Lorena: not yet, but i see they have subforums for step 1 , for each subject
11/19/04 20:17:15 [USMLE_Step_1] jwls29: yes
11/19/04 20:17:35 [USMLE_Step_1] Lorena: more organized
11/19/04 20:17:36 [USMLE_Step_1] hutals: its not in the forum anymore, its a new area thats easier to use and much quicker too
11/19/04 20:17:52 [USMLE_Step_1] jwls29: where do we find it?
11/19/04 20:18:19 [USMLE_Step_1] hutals: up top there is a link that says downloads....the address is http://www.valuemd.com/downloads.php
11/19/04 20:18:28 [USMLE_Step_1] hutals: kaplan
11/19/04 20:18:39 [USMLE_Step_1] hutals: cool, we can write things like kaplan
11/19/04 20:18:46 [USMLE_Step_1] kmonica26: are there any new downloads there?
11/19/04 20:18:48 [USMLE_Step_1] Lorena: goljan
11/19/04 20:18:58 [USMLE_Step_1] Lorena: yes!! it doenst paste a link
11/19/04 20:19:09 [USMLE_Step_1] Lorena: first aid
11/19/04 20:19:10 jwls29 Logs in
11/19/04 20:19:10 jwls29 Joins Subroom USMLE_Step_1
11/19/04 20:19:27 jwls29 Logs in
11/19/04 20:19:46 jwls29 Joins Subroom USMLE_Step_1
11/19/04 20:19:53 [USMLE_Step_1] jwls29: i clicked on your lin
11/19/04 20:19:55 [USMLE_Step_1] hutals: and the announcement said that its still under construction, but it looks great to me
11/19/04 20:20:03 [USMLE_Step_1] jwls29: i think i got kicked out
11/19/04 20:21:06 [USMLE_Step_1] Lorena: do you guys wanna start?
11/19/04 20:21:13 [USMLE_Step_1] jwls29: yes
11/19/04 20:21:36 [USMLE_Step_1] hutals: sure, tonight is gener and excitable tissues
11/19/04 20:21:41 [USMLE_Step_1] hutals: of physio
11/19/04 20:21:48 [USMLE_Step_1] Lorena: ok
11/19/04 20:22:08 [USMLE_Step_1] hutals: i didn't really get to cover the material, so I don't have many questions prepared
11/19/04 20:23:13 [USMLE_Step_1] Lorena: thats ok
11/19/04 20:23:43 [USMLE_Step_1] hutals: which type of transport system requires ATP?
11/19/04 20:24:04 [USMLE_Step_1] hutals: facilitated or active?
11/19/04 20:24:06 [USMLE_Step_1] jwls29: active
11/19/04 20:24:14 [USMLE_Step_1] Lorena: active
11/19/04 20:24:32 [USMLE_Step_1] Lorena: which one is against a concentration gradient?
11/19/04 20:24:39 [USMLE_Step_1] jwls29: active
11/19/04 20:24:50 [USMLE_Step_1] zoya: active
11/19/04 20:24:51 [USMLE_Step_1] hutals: yep active because it moves against the concentration gradient wheras facilitated moves down the conc gradient....good
11/19/04 20:25:04 [USMLE_Step_1] hutals: active
11/19/04 20:26:16 [USMLE_Step_1] hutals: which part of Total Body Water accounts for 2/3 of the total body water?
11/19/04 20:26:29 [USMLE_Step_1] jwls29: ICF
11/19/04 20:26:33 [USMLE_Step_1] kmonica26: ICF
11/19/04 20:26:35 [USMLE_Step_1] hutals: ICF, ECF, ISF, VF?
11/19/04 20:26:44 [USMLE_Step_1] Lorena: agree with jwls and moni
11/19/04 20:26:46 [USMLE_Step_1] zoya: intracellular
11/19/04 20:26:59 [USMLE_Step_1] hutals: yep, ICF.....which accounts for the other 1/3?
11/19/04 20:27:05 [USMLE_Step_1] kmonica26: ECF
11/19/04 20:27:10 [USMLE_Step_1] jwls29: ECF
11/19/04 20:27:17 [USMLE_Step_1] zoya: ECF
11/19/04 20:27:28 [USMLE_Step_1] Lorena: agree
11/19/04 20:27:32 [USMLE_Step_1] jwls29: which is divided into 2/3 interstitial and 1/3 vascular
11/19/04 20:27:37 [USMLE_Step_1] hutals: yep ECF which is further broken down into ISF and VF.....excellent all!
11/19/04 20:28:18 [USMLE_Step_1] Lorena: how many mOsm is 150mM of NaCl?
11/19/04 20:28:25 [USMLE_Step_1] kmonica26: 300
11/19/04 20:28:28 [USMLE_Step_1] jwls29: 300
11/19/04 20:28:29 [USMLE_Step_1] zoya: 300
11/19/04 20:28:34 [USMLE_Step_1] Lorena: yes
11/19/04 20:29:00 [USMLE_Step_1] hutals: i didnt know the answer, but i'm gonna go out on a limb and agree *evil*
11/19/04 20:29:15 [USMLE_Step_1] jwls29:
11/19/04 20:29:25 [USMLE_Step_1] Lorena: :>
11/19/04 20:29:34 [USMLE_Step_1] Lorena: ops, thats not it ...
11/19/04 20:29:51 [USMLE_Step_1] Lorena:
11/19/04 20:30:15 [USMLE_Step_1] hutals: what is an example of loss of isotonic fluid?
11/19/04 20:30:23 [USMLE_Step_1] jwls29: hemorrhage
11/19/04 20:30:28 [USMLE_Step_1] kmonica26: hemmoohage
11/19/04 20:30:40 [USMLE_Step_1] jwls29: diarrhea,vomiting
11/19/04 20:30:47 [USMLE_Step_1] Lorena: yes, diarrhea and vomiting too at the beginning
11/19/04 20:31:13 [USMLE_Step_1] hutals: hemorrhage, diarrhea, vommitting (right away) ...very good
11/19/04 20:31:32 [USMLE_Step_1] hutals: what about loss of hypotonic fluid?
11/19/04 20:31:47 [USMLE_Step_1] jwls29: sweating
11/19/04 20:31:50 [USMLE_Step_1] Lorena: sweat
11/19/04 20:32:03 [USMLE_Step_1] Lorena: alcohol and diabetes insipidus
11/19/04 20:32:45 [USMLE_Step_1] jwls29: agree
11/19/04 20:32:45 [USMLE_Step_1] hutals: yep...any kind of dehydration and also DI
11/19/04 20:33:58 [USMLE_Step_1] Lorena: what kind of transport show saturation kinetics?
11/19/04 20:34:43 [USMLE_Step_1] hutals: carriers like in facilitated
11/19/04 20:34:45 [USMLE_Step_1] kmonica26: facilitated
11/19/04 20:34:55 [USMLE_Step_1] jwls29: agree
11/19/04 20:35:22 [USMLE_Step_1] Lorena: yes, all protein mediated transport : facilitated and active
11/19/04 20:36:00 medfan Logs Out
11/19/04 20:37:15 [USMLE_Step_1] Lorena: how will the osmolarity will be in water intoxication?
11/19/04 20:37:23 medfan Logs in
11/19/04 20:37:28 [USMLE_Step_1] kmonica26: decrease
11/19/04 20:37:43 [USMLE_Step_1] jwls29: decreased
11/19/04 20:37:49 medfan Logs Out
11/19/04 20:37:50 [USMLE_Step_1] hutals: agree
11/19/04 20:38:09 [USMLE_Step_1] Lorena: ys very good
11/19/04 20:39:31 [USMLE_Step_1] kmonica26: Ingestion of salt tablets? effect on Ecf and ICF
11/19/04 20:39:53 [USMLE_Step_1] hutals: why cant the osmolarity just follow the water conc instead of being opposite?? I bet you some guy named hardy weinburg had something to do with that :<
11/19/04 20:40:17 [USMLE_Step_1] jwls29: lol
11/19/04 20:40:22 [USMLE_Step_1] kmonica26:
11/19/04 20:40:32 [USMLE_Step_1] Lorena: increased osmolarity in ECF , decreased volume in IC compartment
11/19/04 20:40:45 [USMLE_Step_1] jwls29: increase osmolarity in ECF and decreased volume in ICF
11/19/04 20:40:53 [USMLE_Step_1] kmonica26: yep
11/19/04 20:41:58 [USMLE_Step_1] kmonica26: formula for calcualtion of blood volume?
11/19/04 20:42:25 [USMLE_Step_1] zoya: also increase vol in ECF
11/19/04 20:42:25 [USMLE_Step_1] hutals: BV= plasma vol/ 1-Hct
11/19/04 20:42:34 [USMLE_Step_1] jwls29: BV= plasma vol/1-Hct
11/19/04 20:42:45 [USMLE_Step_1] kmonica26: correct hutals and agree with zoya
11/19/04 20:43:30 [USMLE_Step_1] Lorena: a patient with a blood glucose of 500mg ...how will the ECF and ICF be regarding osmolarity and volume?
11/19/04 20:44:41 [USMLE_Step_1] hutals: the Na follows the glucose because of cotransport....right?
11/19/04 20:47:07 [USMLE_Step_1] hutals: i'm not sure...i thought i was onto something, but i was wrong
11/19/04 20:47:27 [USMLE_Step_1] Lorena: yes, thats in kidney but it is the opposite i think
11/19/04 20:48:42 [USMLE_Step_1] Lorena: with a blood glucose that high the ECF osmolarity increases
11/19/04 20:48:59 [USMLE_Step_1] kmonica26: Guessing..osmolarity would increase, ECF increase in volume and ICF decrease in volume
11/19/04 20:49:16 [USMLE_Step_1] Lorena: yes
11/19/04 20:49:19 [USMLE_Step_1] Lorena: very good
11/19/04 20:49:42 [USMLE_Step_1] Lorena: thats what happen in hyperosmolar coma
11/19/04 20:50:26 [USMLE_Step_1] kmonica26: good question Lor..thanks
11/19/04 20:50:41 [USMLE_Step_1] Lorena: also because you have a high amount of glucose in urine , get dehydrated because the high glucose carries water with it
11/19/04 20:51:24 [USMLE_Step_1] hutals: thanks lor
11/19/04 20:52:03 [USMLE_Step_1] hutals: capillary membranes are freely permeable to all natural substances disolved in plasma except proteins? T or F
11/19/04 20:52:59 [USMLE_Step_1] jwls29: true
11/19/04 20:53:00 [USMLE_Step_1] Lorena: T
11/19/04 20:53:07 [USMLE_Step_1] zoya: T
11/19/04 20:53:13 [USMLE_Step_1] hutals: Its true, so the conc of plasma proteins determinese the effective osmolarity between comparments.....very good
11/19/04 20:54:17 [USMLE_Step_1] hutals: i think we covered most of general topics. want to move onto excitable tissues?
11/19/04 20:54:23 [USMLE_Step_1] kmonica26: ok
11/19/04 20:54:35 [USMLE_Step_1] Lorena: yes
11/19/04 20:54:39 [USMLE_Step_1] hutals: if you have other gen topic questions, feel free to ask
11/19/04 20:55:16 [USMLE_Step_1] Lorena: ok
11/19/04 20:56:07 [USMLE_Step_1] hutals: if you have a small force, will you need a large or small conductance? what about if you have a large force? what will the conductance need to be?
11/19/04 20:57:42 [USMLE_Step_1] Lorena: if you have a small force you need a large conductance and viceversa?
11/19/04 20:58:14 [USMLE_Step_1] hutals: the conductance is basically the # of open channels. the rate depends on both conductance and force. if you have a small force, must have large conductance (lots of open channels). if you have a large force, only need small conductance (fewer channels).
11/19/04 20:58:36 [USMLE_Step_1] hutals: the try to confuse us with big terms, but the concept makes sense
11/19/04 20:58:52 [USMLE_Step_1] Lorena: yes
11/19/04 20:58:59 [USMLE_Step_1] hutals: good job lor
11/19/04 20:59:51 [USMLE_Step_1] Lorena: thanks
11/19/04 20:59:56 [USMLE_Step_1] hutals: is Na normally higher inside or outside cell? what about K?
11/19/04 21:00:44 [USMLE_Step_1] jwls29: Na is normally higher outside the cell and K is normally higher inside the cell
11/19/04 21:00:45 [USMLE_Step_1] Lorena: Na is high extracellular; intracellular is K
11/19/04 21:01:01 [USMLE_Step_1] zoya: k is higher inside and na is higher outside
11/19/04 21:01:06 [USMLE_Step_1] hutals: The mneumonic is "NOKIa" (name of phone) for Na Outside and K+ Inside
11/19/04 21:01:11 [USMLE_Step_1] hutals: very godd all
11/19/04 21:02:31 [USMLE_Step_1] Lorena: where is a higher concentration of organic anions? extracellular or intracellular?
11/19/04 21:02:43 [USMLE_Step_1] crusher: outside?
11/19/04 21:03:02 [USMLE_Step_1] zoya: intra
11/19/04 21:03:14 [USMLE_Step_1] zoya: intracellular
11/19/04 21:03:27 [USMLE_Step_1] jwls29: intracel
11/19/04 21:03:41 [USMLE_Step_1] Lorena: intracellular has higher , mainly proteins
11/19/04 21:04:24 [USMLE_Step_1] Lorena: i didnt know that either until i got it wrong
11/19/04 21:04:51 [USMLE_Step_1] hutals: interesting....thanks
11/19/04 21:05:19 [USMLE_Step_1] Lorena: yw
11/19/04 21:05:48 [USMLE_Step_1] hutals: what ion causes repol?
11/19/04 21:05:57 [USMLE_Step_1] jwls29: K
11/19/04 21:06:19 [USMLE_Step_1] crusher: yes inc K conductance
11/19/04 21:06:19 [USMLE_Step_1] Lorena: agree
11/19/04 21:06:28 [USMLE_Step_1] hutals: yep K
11/19/04 21:07:29 [USMLE_Step_1] hutals: if a drug blocks opening of voltage gated Na channels, will you block depol?
11/19/04 21:07:37 [USMLE_Step_1] jwls29: yes
11/19/04 21:07:41 [USMLE_Step_1] crusher: yes
11/19/04 21:07:48 [USMLE_Step_1] zoya: yes
11/19/04 21:08:09 [USMLE_Step_1] Lorena: depending where
11/19/04 21:08:25 [USMLE_Step_1] hutals: yep, that right. what about a drug that blocks opening of voltage gated K.....will you block repol?
11/19/04 21:08:27 [USMLE_Step_1] zoya: yes lorena is right
11/19/04 21:08:40 [USMLE_Step_1] Lorena: if it is a neuron , you block depolarization , but if it is in a cardia muscle you dont, you just slow it down
11/19/04 21:08:50 [USMLE_Step_1] zoya: yes
11/19/04 21:08:56 [USMLE_Step_1] crusher: no not completely as there are leaky K channel
11/19/04 21:09:12 [USMLE_Step_1] jwls29: agree w/crusher
11/19/04 21:09:13 [USMLE_Step_1] hutals: now that i think about it, i think we discussed this in our last physio chat because i have it written in my notes
11/19/04 21:09:21 [USMLE_Step_1] Lorena: yes
11/19/04 21:09:41 [USMLE_Step_1] Lorena: always be careful if it is in a neuron or a cardiac cell, or a nodal cell
11/19/04 21:09:44 [USMLE_Step_1] hutals: no will not block repol because also have ungated slower K channels
11/19/04 21:10:56 [USMLE_Step_1] hutals: what is the difference between absolute and relative refractory periods?
11/19/04 21:11:28 [USMLE_Step_1] jwls29: in ARP you can't elicit a response after the initial stimulus
11/19/04 21:11:32 [USMLE_Step_1] crusher: abosolute no stimulus can generate action pot while in refractory strong stimulus can gen AP
11/19/04 21:11:42 [USMLE_Step_1] Lorena: agree
11/19/04 21:11:56 [USMLE_Step_1] jwls29: In RRP, a strong stimulus can ilicit another response
11/19/04 21:12:13 [USMLE_Step_1] hutals: absolute cannot induce second AP no matter how strong the stimulus is. relative can induce if stimulus is strong enough.....very good
11/19/04 21:12:21 [USMLE_Step_1] crusher: RRP it will be like double hump.
11/19/04 21:13:45 [USMLE_Step_1] hutals: which is optimal for fast conduction? large vs small and unmyelinated vs myelinated...pick combo of 2
11/19/04 21:13:55 [USMLE_Step_1] Lorena: why a change in extracellular K can produce arrythmias but not an increase in extracellular Na?
11/19/04 21:14:04 [USMLE_Step_1] jwls29: large,myelinated
11/19/04 21:14:20 [USMLE_Step_1] crusher: fast cond=mylinated n large
11/19/04 21:14:46 [USMLE_Step_1] hutals: large myelinated for fast conduction....opposite for slow....good job
11/19/04 21:15:44 [USMLE_Step_1] crusher: cos extracellular K can cause Na/Ca pump to change its activaty also K compete for digitalis
11/19/04 21:16:58 [USMLE_Step_1] crusher: whats the ans lorena/
11/19/04 21:17:16 [USMLE_Step_1] Lorena: because some K channels the ungated ones are always open
11/19/04 21:17:31 [USMLE_Step_1] Lorena: in contrast Na channels only open when depolarization
11/19/04 21:17:35 [USMLE_Step_1] kmonica26: I thought maybe because of ungated K channels some are always open
11/19/04 21:17:39 [USMLE_Step_1] kmonica26: jusy guessing
11/19/04 21:17:46 [USMLE_Step_1] Lorena: yes monica you are right
11/19/04 21:17:48 [USMLE_Step_1] kmonica26: oops a little late
11/19/04 21:17:50 [USMLE_Step_1] crusher: oh ok.
11/19/04 21:18:03 [USMLE_Step_1] Lorena: tahts why cells are very sensitive to K and not as much to Na
11/19/04 21:18:11 [USMLE_Step_1] zoya: cause na channels are closed during normal resting conditions.......
11/19/04 21:18:36 [USMLE_Step_1] Lorena: yes
11/19/04 21:19:03 [USMLE_Step_1] crusher: but if they K open ungated channel there will be hyperpolirization right??
11/19/04 21:19:12 [USMLE_Step_1] crusher: why arrythmia?
11/19/04 21:19:39 [USMLE_Step_1] Lorena: only if K increases
11/19/04 21:19:51 [USMLE_Step_1] Lorena: not in normal situations
11/19/04 21:20:12 [USMLE_Step_1] crusher: ok
11/19/04 21:22:13 crusher Logs Out
11/19/04 21:22:25 [USMLE_Step_1] Lorena: are you gusy still there?
11/19/04 21:22:28 crusher Logs in
11/19/04 21:22:35 [USMLE_Step_1] jwls29: yes
11/19/04 21:22:36 [USMLE_Step_1] hutals: yep, sorry i had a phone call
11/19/04 21:22:44 crusher Joins Subroom USMLE_Step_1
11/19/04 21:22:48 [USMLE_Step_1] zoya: yes
11/19/04 21:22:53 [USMLE_Step_1] kmonica26: yes
11/19/04 21:23:17 [USMLE_Step_1] hutals: which phase has greatest Na conductance?
11/19/04 21:23:34 [USMLE_Step_1] jwls29: depolarization
11/19/04 21:23:44 [USMLE_Step_1] Lorena: agree
11/19/04 21:23:56 [USMLE_Step_1] crusher: phase1..depol
11/19/04 21:24:14 [USMLE_Step_1] hutals: yep, phase 0 or depol
11/19/04 21:24:32 [USMLE_Step_1] hutals: phase 1 is a slight repol
11/19/04 21:24:52 [USMLE_Step_1] hutals: but not likely to be tested on phase 1
11/19/04 21:25:08 [USMLE_Step_1] hutals: which phase hase greatest Ca conductance?
11/19/04 21:25:30 [USMLE_Step_1] jwls29: phase 2 or plateau phase
11/19/04 21:25:34 [USMLE_Step_1] crusher: platue
11/19/04 21:26:09 [USMLE_Step_1] hutals: phase 2 or plateau is right
11/19/04 21:26:27 [USMLE_Step_1] hutals: which has greatest K conductance?
11/19/04 21:26:43 [USMLE_Step_1] jwls29: phase 3 or repolarization
11/19/04 21:27:24 [USMLE_Step_1] hutals: hey thats a pretty cool new logo....i just noticed it says Value MD where the V is mixed with the MD....cool
11/19/04 21:28:02 [USMLE_Step_1] crusher: yeah i saw it too
11/19/04 21:28:36 [USMLE_Step_1] hutals: its actually phase 4 because all K channels are open in 4 whereas reopening, but not open in 3
11/19/04 21:28:50 [USMLE_Step_1] jwls29: thanks hutals
11/19/04 21:28:56 [USMLE_Step_1] jwls29: i thought about it afterwards
11/19/04 21:29:16 [USMLE_Step_1] hutals: remember that conductance is the opening of the channels, not necessarily the rate
11/19/04 21:29:56 [USMLE_Step_1] hutals: that was a bit of a tricky one *evil*
11/19/04 21:30:10 [USMLE_Step_1] hutals: i love that sound thing
11/19/04 21:31:54 [USMLE_Step_1] hutals: what has the highest intrinsic rate=? AV, SA or purkinje?
11/19/04 21:32:20 [USMLE_Step_1] Lorena: SA
11/19/04 21:32:31 [USMLE_Step_1] jwls29: agree
11/19/04 21:33:18 [USMLE_Step_1] crusher: agree
11/19/04 21:33:38 [USMLE_Step_1] hutals: yep, very good. the SA node has highest intrinsic rate
11/19/04 21:34:42 [USMLE_Step_1] zoya: i gotta go, thanks a lot everybody....... bye........
11/19/04 21:34:48 [USMLE_Step_1] jwls29: bye zoya
11/19/04 21:35:02 [USMLE_Step_1] hutals: i think we covered about everything. anything else we missed?
11/19/04 21:35:32 zoya Logs Out
11/19/04 21:35:33 [USMLE_Step_1] jwls29: i think that pretty much covers it
11/19/04 21:35:42 [USMLE_Step_1] Lorena: yes
11/19/04 21:35:47 [USMLE_Step_1] kmonica26: yes
11/19/04 21:36:07 [USMLE_Step_1] hutals: ok, well thanks for the great chat....and fun with all the new features
11/19/04 21:36:12 [USMLE_Step_1] crusher: guys plz pray for me
11/19/04 21:36:20 [USMLE_Step_1] Lorena: when is your exam crush?
11/19/04 21:36:30 [USMLE_Step_1] hutals: me too, i will be taking exam next week
11/19/04 21:36:34 [USMLE_Step_1] crusher: my exams r realsoon n any advice for last week
11/19/04 21:36:40 [USMLE_Step_1] jwls29: oh wow
11/19/04 21:36:43 [USMLE_Step_1] jwls29: good luck guys
11/19/04 21:36:49 [USMLE_Step_1] crusher: oh hutal we r in same boat
11/19/04 21:36:52 [USMLE_Step_1] kmonica26: good luck guys
11/19/04 21:36:55 [USMLE_Step_1] Lorena: just relax , you are in excellent condition to take that test
11/19/04 21:37:14 [USMLE_Step_1] hutals: yes, i will pray for you crush. i know you will do well
11/19/04 21:37:26 [USMLE_Step_1] crusher: u sure do well hutal
11/19/04 21:37:36 [USMLE_Step_1] jwls29: i will pray for both of you
11/19/04 21:37:40 [USMLE_Step_1] Lorena: i will too
11/19/04 21:37:41 [USMLE_Step_1] crusher: did u finish nbme test both part
11/19/04 21:37:43 [USMLE_Step_1] kmonica26: u both will do well
11/19/04 21:37:48 [USMLE_Step_1] crusher: thanks we need it
11/19/04 21:37:58 [USMLE_Step_1] hutals: thanks for all your support everyone
11/19/04 21:38:28 [USMLE_Step_1] Lorena: get a good sleep
11/19/04 21:38:40 [USMLE_Step_1] Lorena: you both will do great
11/19/04 21:38:46 [USMLE_Step_1] jwls29: will either one of you be back for chats next week?
11/19/04 21:39:00 [USMLE_Step_1] crusher: i guess not me
11/19/04 21:39:15 [USMLE_Step_1] hutals: i agree with lor. after reading about sleep disorders....that is probably the most important thing the nights before exam. and time management from what i hear
11/19/04 21:39:49 [USMLE_Step_1] Lorena: starting next week i wont be able to come everyday
11/19/04 21:39:58 [USMLE_Step_1] jwls29: me either
11/19/04 21:40:10 [USMLE_Step_1] hutals: i dont think i can chat because i will be going to see my family right after test for thanksgiving. but i will try to write my experience on plane trip and post it when i get back
11/19/04 21:40:20 [USMLE_Step_1] Lorena: i have to concentrate on my weak areas (specially anatomy and biochemistry)
11/19/04 21:40:25 [USMLE_Step_1] jwls29: i will try to make it to most chats b/c it's physio
11/19/04 21:40:47 [USMLE_Step_1] jwls29: but after that i think i might pop in every now and then
11/19/04 21:40:48 [USMLE_Step_1] crusher: how is tht idea do quick revision of all subjects in last week
11/19/04 21:40:53 [USMLE_Step_1] kmonica26: i want to attend all physio as this is imporatnet
11/19/04 21:40:54 [USMLE_Step_1] jwls29: but i have to fine tune what i know
11/19/04 21:41:09 [USMLE_Step_1] hutals: i'm glad we did biochem recently because that was my worst subject and i never would have covered it if it werent for the chats
11/19/04 21:41:17 [USMLE_Step_1] Lorena: that sounds good crush
11/19/04 21:41:18 [USMLE_Step_1] jwls29: i know for sure i will not be here on tuesday
11/19/04 21:41:32 [USMLE_Step_1] jwls29: i agree crusher
11/19/04 21:41:39 [USMLE_Step_1] Lorena: what day?
11/19/04 21:41:43 [USMLE_Step_1] kmonica26: we have 3 days next week
11/19/04 21:41:56 [USMLE_Step_1] hutals: also do lots of tests to prep for real thing (timing)
11/19/04 21:42:25 [USMLE_Step_1] crusher: i,m not able to conc much as my heart start poundling from now
11/19/04 21:42:48 [USMLE_Step_1] Lorena: yes i understand what you feel
11/19/04 21:42:53 [USMLE_Step_1] jwls29: me too
11/19/04 21:42:59 [USMLE_Step_1] hutals: i know how you feel. i'm in state of denial and shock just trying not to think about it
11/19/04 21:43:12 [USMLE_Step_1] jwls29: when i think about the test i start having racing thoughts and tachycardia
11/19/04 21:43:50 [USMLE_Step_1] crusher: we all r same i guess
11/19/04 21:44:28 [USMLE_Step_1] hutals: i think so. lets all pray for each other
11/19/04 21:45:07 [USMLE_Step_1] Lorena: ok guys, thank you for the chat i have to go
11/19/04 21:45:27 [USMLE_Step_1] jwls29: i will pray for you
11/19/04 21:45:30 [USMLE_Step_1] jwls29: you will do fine
11/19/04 21:45:32 [USMLE_Step_1] jwls29: good luck
11/19/04 21:45:40 [USMLE_Step_1] Lorena: best of luck for you hutals and crush. i know you will do great and you 'll be in my prayers
11/19/04 21:45:40 [USMLE_Step_1] hutals: yes, me too. good nite all, have a great weekend and thanksgiving. and prayer are with you all
11/19/04 21:45:45 [USMLE_Step_1] kmonica26: good luck both of you
11/19/04 21:45:45 [USMLE_Step_1] crusher: ok thanks all of u..i learn a lot from all of u during chat session n find nice friends
11/19/04 21:46:08 [USMLE_Step_1] crusher: i will meet u guys afterwards n good luck hutal
11/19/04 21:46:21 [USMLE_Step_1] hutals: thanks, best of luck to you too
11/19/04 21:46:39 [USMLE_Step_1] Lorena: tell us how it went after you are done
11/19/04 21:46:54 [USMLE_Step_1] jwls29: goodnite
11/19/04 21:46:58 [USMLE_Step_1] Lorena: bye
11/19/04 21:47:02 [USMLE_Step_1] crusher: yes i will....goodnite
11/19/04 21:47:02 [USMLE_Step_1] kmonica26: goodnite
11/19/04 21:47:03 [USMLE_Step_1] crusher: bye
11/19/04 21:47:06 [USMLE_Step_1] hutals: bye
11/19/04 21:47:15 kmonica26 Logs Out
11/19/04 21:47:22 [USMLE_Step_1] hutals: i'll post chat in new chat forum
11/19/04 21:47:25 Lorena Logs Out
11/19/04 21:47:29 jwls29 Logs Out
11/19/04 21:47:49 [USMLE_Step_1] crusher: hutals u there
11/19/04 21:48:11 [USMLE_Step_1] hutals: yep, just trying to figure out how to post transcript
11/19/04 21:48:17 [USMLE_Step_1] crusher: ok.
11/19/04 21:48:24 [USMLE_Step_1] crusher: did u do nbme test
11/19/04 21:48:53 [USMLE_Step_1] hutals: i only did the ones posted on the forum. but i did most of qbank and some bss too
11/19/04 21:48:59 [USMLE_Step_1] crusher: just copy n paste
11/19/04 21:49:15 [USMLE_Step_1] crusher: oh i see i didnot do bss
11/19/04 21:49:23 [USMLE_Step_1] hutals: i think i figured it out
11/19/04 21:49:30 [USMLE_Step_1] crusher: ok
11/19/04 21:49:50 [USMLE_Step_1] hutals: i didnt do much of bss. i concentrated on qbank
11/19/04 21:50:16 [USMLE_Step_1] crusher: yeah i also did q bank
11/19/04 21:50:36 [USMLE_Step_1] hutals: i liked the nbme, but problem is that there are no answers
11/19/04 21:50:55 [USMLE_Step_1] crusher: but u will get a score for assesment
11/19/04 21:51:29 [USMLE_Step_1] hutals: yes, so its good towards the end to see where you stand. but i used qbank throughout so i can learn from it too
11/19/04 21:51:30 [USMLE_Step_1] crusher: n u can conc on ur weaker subs..ppk say its very close to exam
11/19/04 21:51:46 [USMLE_Step_1] crusher: sure q bank is a good tool too
11/19/04 21:52:10 [USMLE_Step_1] hutals: i've heard that too. i wish i would have done the nbme....i think i was being cheap at time and now maybe regret it a little
11/19/04 21:52:36 [USMLE_Step_1] crusher: no no..if u good in ur sub then it doesnot matter
11/19/04 21:53:16 [USMLE_Step_1] hutals: i guess there is sooo much material that we all have to pick and choose whatever works best for us.
11/19/04 21:53:41 [USMLE_Step_1] crusher: yep!ok hutal ..see u later then.
11/19/04 21:53:57 [USMLE_Step_1] hutals: ok, have a great weekend and best of luck
11/19/04 21:54:05 [USMLE_Step_1] crusher: goodnite !n wish u good luck again
11/19/04 21:54:29 crusher Logs Out
11/19/04 21:54:47 hutals Logs Out

hi room...........................

dude,
this is one yr old transcript.Don't go back in time