Here are the ones I have found useful....

Suicide assessment: SADPERSONS
Sex (M)
Age (<19, >45)
Depressed
Previous attempt
Excessive ETOH or drugs
Rational thinking loss
Single
Organized plan with means
No social support
States future intent

Bipolar Mania: DIGFAST
Distractable
Insominia with increased energy
Grandiosity
Activity increased
Speech rapid
Thoughtlessness

Delirium: IWATCHDEATH
Infection
Withdrawl
Acute metabolic
Trauma
CNS
Hypoxia
Deficiency in vitamins
Endocrine
Acute vascular
Toxins
Heavy metals