Anesthesia Hub -

10 Random Questions

Administration of succinylcholine 1 mg/kg to a pregnant woman rarely causes fetal neuromuscular blockade. Which characteristic of succinylcholine best explains this phenomenon?

(A) High protein binding
(B) Ionization
(C) Lack of passive placental diffusion
(D) Lipid solubility
(E) Metabolism in the fetal liver

ADVANCED Pharmacology & Pharmacokinetics OB

Which of the following is most reliable for treatment of cerebral artery vasospasm associated with subarachnoid hemorrhage?

(A) Antifibrinolytic therapy
(B) Hyperventilation
(C) Mannitol infusion
(D) Nitroprusside infusion
(E) Volume expansion

Assignment of a patient to an ASA physical status category is used to

(A) facilitate comparisons among different patient groups and institutions
(B) guide the choice of anesthetic technique
(C) permit accurate determination of charges for professional services
(D) predict anesthetic risk
(E) predict perioperative mortality

BASIC General

Each of the following values is associated with acute tubular necrosis EXCEPT

(A) urine osmolality of 200 mOsm/kg
(B) urine sodium concentration of 15 mEq/L
(C) urine specific gravity of 1.009
(D) urine/serum osmolarity ratio of 1.2
(E) fractional excretion of sodium of 4%

BASIC General

Nonsteroidal analgesics such as aspirin decrease pain by

(A) decreasing axonal transmission of pain stimuli through a local anesthetic mechanism
(B) directly competing with substance P for receptor occupancy
(C) inhibiting enzymatic breakdown of met-enkephalin
(D) inhibiting production of prostaglandin E2
(E) potentiating the action of endorphin in the substantia gelantinosa of the spinal cord

BASIC Pharmacology & Pharmacokinetics

A 30-year-old man who is breathing spontaneously has a ventilatory pattern of sustained deep inspiration and occasional expiratory gasps during emergence from general anesthesia after posterior fossa craniotomy. Which of the following is the most likely cause?

(A) Air in the cerebral ventricles
(B) Expiratory obstruction from subglottic edema
(C) Injury to the C3-5 nerve roots
(D) Injury to the pons
(E) Residual neuromuscular paralysis

ADVANCED Neuro

Each of the following is an adverse effect of ritodrine used for suppression of labor EXCEPT

(A) dysrhythmias
(B) hyperglycemia
(C) hyperkalemia
(D) hypotension
(E) pulmonary edema

ADVANCED Pharmacology & Pharmacokinetics OB

A patient receiving propranolol and nifedipine is scheduled for elective coronary artery bypass surgery. During induction with fentanyl and oxygen, heart rate decreases from 52 to 36 bpm and blood pressure decreases from 130/85 to 80/50 mmHg. Administration of atropine 2 mg intravenously has no effect. The most appropriate treatment at this time is administration of

(A) epinephrine
(B) pancuronium
(C) naloxone
(D) phenylephrine
(E) calcium chloride

ADVANCED Cardiac

A 65-year-old patient with hypertrophic cardiomyopathy has chest pain prior to induction of anesthesia. Pulse is 80 bpm and blood pressure is 130/80 mmHg. The ECG (V5) shows sinus rhythm and new ST-segment depression. The most appropriate management is administration of

(A) furosemide
(B) metoprolol
(C) morphine
(D) nifedipine
(E) nitroglycerin

BASIC General Cardiac

An elderly man has an acute dissection of the descending thoracic aorta. Which of the following antihypertensive therapies is most likely to extend the dissection?

(A) Esmolol infusion
(B) Nitroglycerin infusion
(C) Nitroprusside infusion
(D) Nitroprusside infusion combined with a beta-adrenergic blocker
(E) Trimethaphan infusion

ADVANCED General