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PHM - Exam 2
N/A
31
Medical
Graduate
06/01/2013

Additional Medical Flashcards

 


 

Cards

Term
Distinguish between terbutaline, albuterol, and salmeterol in terms of adverse effects
Definition

albuterol and salmeterol: tremor and tachycardia

 

terbutaline: none

Term
Distinguish between dopamine and dobutamine in terms of therapeutic effects.
Definition

DA: increase in renal/mesenteric blood flow and vomiting, dobutamine does not

 

 

Term
Distinguish between terbutaline, albuterol, and salmeterol in terms of onset of effect and duration.
Definition

terbutaline and albuterol: RAPID onset, SHORT duration

 

salmeterol: SLOW onset, LONG duration

Term
Distinguish b/t amphetamine and cocaine in terms of their effects on NET.
Definition
amphetamine: causes REVERSE TRANSPORT of NE back into cleft; cocaine doesn't
Term
Distinguish between pseudoephedrine and ephedrine in terms of their potency as CNS stimulants.
Definition
ephedrine: MORE powerful CNS stimulant than pseudoephedrine.
Term
Name the only irreversible alpha-AR antagonist.
Definition
Phenoxybenzamine (PBZ)
Term
What type of beta-AR agonist suits patients with bronchospasm, diabetes, peripheral vascular disease, or Raynaud's?
Definition
beta-1 agonist
Term
What type of beta-AR agonist suits patients with bradycardia?
Definition
beta blocker with intrinsic sympathomimetic activity
Term
What type of beta-AR agonist suits patients with HT, occlusive peripheral disease, or CHF?
Definition
beta blocker with alpha-1 antagonist activity and beta-2 agonist properties
Term
Which type of ACh-R is located on postganglionic cholinergic nerve targets, autonomic nerve terminals, and CNS neurons?
Definition
mAChR
Term
Which type of AChR is located at autonomic ganglia, adrenal medulla, NMJ, and CNS neurons?
Definition
nAChR
Term
Distinguish between carbachol and bethanechol and succinylcholine in terms of the type of ACh-R that they activate.
Definition

carbachol, bethanechol: mACh-R

 

succinylcholine: nACh-R

Term
Distinguish between AChE and BuChE.
Definition
AChE: true cholinesterase; rapid

BuChE: pseudo cholinesterase; acts in plasma, neuroglia, GI tract; inactivates drugs
Term
Describe the Enrophonium Test.
Definition
myasthenic crisis: not enough AChEi administered o overcome weakness

cholinergic crisis: too much AChEi administered-->desensitization
Term
List the symptoms of organophosphate poisoning.
Definition
Sweating; Lacrimation; Urination; Defeation; GI distress; Eye miosis (SLUDGE)
Term
Describe the process by which artopine is eliminated from the body.
Definition
two phases: rapid phase--->slow phase; 50% unchanged in urine; lasts for days in the eyes.
Term
What is "atropine fever" in kids?
Definition
loss of thermoregulation from atropine antagonistic effects
Term
Describe the action of pralidoxime on organophosphate action.
Definition
Pralidoxime reverses the binding between organophosphates and AChE at the NMJ prior to aging.
Term
What is the normal range for IOP?
Definition
normal: 10-20 mmHg
Term
Distinguish between open angle glaucoma and closed (narrow) angle glaucoma.
Definition
Open: chronic, pharmacologically treatable

Closed: acute, rarer, surgery required (iridectomy)
Term
Name the receptor responsible for an increase and decrease in ciliary epithelial aq. humor secretion. respectively.
Definition
beta-2/alpha-2
Term
Distinguish between the effects of small doses and large doses of nondepolarizing NMJ blockers (relaxants).
Definition
small: primarily competes with ACh so action can be reversed by AChEi (neostigmine)

large: actually enters channel pore; can't be reversed by AChEi's
Term
In what order do non-depolarizing NMJ blockers paralyze muscles?
Definition
small--->large (recovery in reverse order)
Term
Distinguish between Phase 1 and Phase 2 depolarizing blockage by succinylcholine.
Definition
Phase 1: can be augmented by AChEi

Phase 1: prolonged exposure--->membrane desensitization
Term
Distinguish between tubocurarine and succinylcholine in terms of effect at muscle end plate.
Definition
tubo: non-depo

succ: polarizing
Term
Distinguish between tubocurarine and succinylcholine in terms of initial effect on muscle.
Definition
tubo: paralaysis

succ: fasciculations and then paralysis
Term
Distinguish between tubocurarine and succinylcholine in terms of effect of AChEi.
Definition
tubo: reversed

succ: no effect
Term
Distinguish between tubocurarine and succinylcholine in terms of histamine release.
Definition
tubo: prominent histo. release

succ: none
Term
Distinguish between tubocurarine and succinylcholine in terms of general anesthetics.
Definition
tubo: can allow lower dose

succ: malignant hyperthermia possible
Term
Distinguish between tubocurarine and succinylcholine in terms of production of ganglionic blockade.
Definition
tubo: can do it in high doses
Term
Distinguish between tubocurarine and succinylcholine in terms of production of malignant hyperthermia.
Definition
only with succ.
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