10 Random Questions
Percutanous cordotomy is being considered for a patient with severe pain that has persisted for three months after amputation of the arm for osteogenic sarcoma. Which of the following statements is true?
- (A) An effective cordotomy will produce motor block
- (B) A series of stellate ganglion blocks will provide permanent relief
- (C) Cordotomy must be performed with the patient awake
- (D) Cordotomy will effectively relieve phantom limb pain
- (E) Spinal opioids are an alternative treatment of this pain
The tracing indicates that the pacemaker generator is
- (A) malfunctioning
- (B) VVT sensing and capturing normally
- (C) VOO sensing and capturing normally
- (D) DVI sensing and capturing normally
- (E) VVI sensing and capturing normally
A successful ankle block for transmetatarsal amputation of the first and second toes should include each of the following nerves EXCEPT the
- (A) saphenous
- (B) deep peroneal
- (C) superficial peroneal
- (D) sural
- (E) tibial
In patients with blunt head trauma, cerebral perfusion pressure is determined by the gradient between
- (A) diastolic pressure and central venous pressure
- (B) intracranial pressure and central venous pressure
- (C) mean arterial pressure and central venous pressure
- (D) mean arterial pressure and intracranial pressure
- (E) systolic pressure and intracranial pressure
Halothane
- (A) has no effect on reflex hypoxic pulmonary vasoconstriction
- (B) protects the myocardium from beta-adrenergic stimulation
- (C) has a direct, negative chronotropic effect on the sinoatrial node
- (D) metabolites decrease renal concentrating ability
- (E) is unsafe for use with epinephrine-containing local anesthetics
Which of the following statements concerning banked blood is true?
- (A) Red blood cells preserved with CPDA-1 have a shelf life of approximately 21 days
- (B) Packed red blood cells deliver oxygen normally immediately after administration
- (C) Packed red blood cells contain most of the leukocytes present in the donated unit
- (D) Citrate is used as a source of energy for whole blood
- (E) Stored whole blood contains all coagulation factors except II and VIII
Which of the following phenomena is primarily responsible for the decrease in core body temperature that commonly occurs during the first hour of general anesthesia?
- (A) Convective heat loss from cutaneous vasodilation
- (B) Decreased heat production
- (C) Evaporative heat loss during skin preparation
- (D) Heat loss from the respiratory tract
- (E) Redistribution of core body heat to the periphery
A 6-year-old boy with spina bifida and a chronic indwelling urinary catheter has severe hypotension and hypoxemia during augmentation cystoplasty. Which of the following is the most likely cause?
- (A) Autonomic neuropathy
- (B) Disseminated intravascular coagulation
- (C) Latex allergy
- (D) Urinary sepsis
- (E) Venous air embolism
Which of the following factors is the LEAST important determinant of postdural puncture headache?
- (A) Age of the patient
- (B) Gauge of the spinal needle
- (C) Gender of the patient
- (D) Pregnancy
- (E) Time until ambulation
Hypomagnesemia is associated with
- (A) decreased risk for digitalis toxicity
- (B) dysrhythmias sensitive to bretylium
- (C) hypercalcemia
- (D) prolonged succinylcholine blockade
- (E) surgery requiring cardiopulmonary bypass