10 Random Questions
Each of the following indicates a hemolytic transfusion reaction in an anesthetized patient EXCEPT
(A) bleeding diathesis
(B) wheezing
(C) hypotension
(D) hemoglobinuria
(E) decreased serum haptoglobin concentration
Reveal Answer
ADVANCED
Transfusions & Fluids
Which of the following is the most likely adverse effect of prolonged intravenous administration of nitroglycerin?
(A) Cyanmethemoglobinemia
(B) Hemolysis
(C) Methemoglobinemia
(D) Neutropenia
(E) Thrombocytopenia
Reveal Answer
BASIC
Pharmacology & Pharmacokinetics
An infant becomes cyanotic and hypotensive after ventilatory pressures increase to 45 cm H2O during closure of the abdominal wall at the end of a gastroschisis repair. The most appropriate next step is to
(A) administer a muscle relaxant
(B) administer 5% dextrose in lactated Ringer's solution 10 ml/kg
(C) change the endotracheal tube
(D) ask the surgeon to insert a chest tube
(E) ask the surgeon to reopen the abdomen
Reveal Answer
ADVANCED
Pediatric
During surgery with a carbon dioxide laser, which inhaled gas mixture is LEAST likely to promote combustion of the endotracheal tube?
(A) Oxygen 25%-helium 75%
(B) Oxygen 25%-nitrogen 75%
(C) Oxygen 25%-nitrous oxide 75%
(D) Oxygen 50%-nitrogen 50%
(E) Oxygen 50%-nitrous oxide 50%
Reveal Answer
BASIC
Equipment & Physics
A celiac plexus block effectively relieves pain at which of the following sites?
(A) Abdominal viscera above the pelvis
(B) Parietal peritoneum above the pelvis
(C) Pelvic parietal peritoneum
(D) Pelvic viscera
(E) Visceral pleura
Reveal Answer
The metabolism of which of the following hypotensive agents is most likely to be affected in patients with severe renal disease?
(A) Esmolol
(B) Hydralazine
(C) Nitroglycerin
(D) Nitroprusside
(E) Trimethaphan
Reveal Answer
BASIC
Pharmacology & Pharmacokinetics
Which of the following is the most likely effect of long-term exposure to nitrous oxide at a concentration of 50 ppm?
(A) Impaired cognitive function
(B) Inhibition of vitamin B-12 absorption
(C) Megaloblastic changes in bone marrow
(D) Teratogenesis
(E) Thrombocytopenia
Reveal Answer
During one-lung ventilation, each of the following affects hypoxic pulmonary vasoconstriction in the nonventilated lung EXCEPT
(A) application of continuous positive airway pressure to the nonventilated lung
(B) high alveolar pO2 in the ventilated lung
(C) infusion of isoproterenol
(D) low mixed venous pO2
(E) pulmonary hypertension
Reveal Answer
ADVANCED
Respiratory & Critical Care
General
An arterial blood sample is obtained from a patient undergoing hypothermic cardiopulmonary bypass at 28 C. Analysis at 37 C shows a pH of 7.40 and PaCO2 of 40 mmHg. Which of the following values are most likely if the analysis is corrected to 28 C?
(A) pH = 7.40; PaCO2 = 40
(B) pH > 7.40; PaCO2 < 40
(C) pH > 7.40; PaCO2 > 40
(D) pH < 7.40; PaCO2 < 40
(E) pH < 7.40; PaCO2 > 40
Reveal Answer
ADVANCED
Equipment & Physics
Cardiac
Which of the following fluids will restore circulating blood volume with the smallest infused volume?
(A) Albumin 25%
(B) Dextrose 5% in saline solution 0.45%
(C) Hydroxyethyl starch 6%
(D) Lactated Ringer's solution
(E) Type-specific whole blood
Reveal Answer