Anesthesia Hub -

10 Random Questions

Which of the following combinations of hemoglobin, blood gases, and cardiac output provides the greatest delivery of oxygen to tissue? (Hb, PaO2, SaO2, CO)

(A) 7.0 85 95 7.0
(B) 8.0 290 100 8.0
(C) 9.9 61 90 9.8
(D) 12.0 140 100 4.5
(E) 16.0 40 75 5.8

BASIC General

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

In an unpremedicated, spontaneously breathing patient, an alveolar halothane concentration of 0.74% in oxygen is consistently associated with

(A) absence of overt response to skin incision
(B) constricted pupils
(C) flaccidity of abdominal muscles
(D) normal glomerular filtration rate
(E) normal myocardial contractility

BASIC Pharmacology & Pharmacokinetics

Which of the following results in the greatest increase in right-to-left shunting in an infant with cyanotic heart disease?

(A) Decreased pulmonary vascular resistance
(B) Decreased systemic vascular resistance
(C) Hemodilution
(D) Increased heart rate
(E) Myocardial depression

ADVANCED Pediatric Cardiac

A patient with a fasting blood glucose concentration of 100 mg/dL undergoes a four-hour operation under general anesthesia without intraoperative administration of glucose. On emergence the most likely finding will be

(A) marked hypoglycemia
(B) mild hypoglycemia
(C) normoglycemia
(D) mild hyperglycemia
(E) marked hyperglycemia

ADVANCED General

A 70-year-old patient is shivering and has chest pain in the PACU following a cholecystectomy. Heart rate is 120 bpm, and blood pressure is 220/120 mmHg. SpO2 is 97% at an FiO2 of 0.4. An ECG shows ST-T wave changes, which are not affected by intravenous administration of nitroglycerin. Which of the following is the most appropriate next step?

(A) Administration of esmolol
(B) Administration of hydralazine
(C) Administration of nitroprusside
(D) Application of a warming blanket
(E) Increasing FiO2

ADVANCED General Cardiac

A 50-year-old man with alcoholism and jaundice is scheduled to undergo umbilical herniorrhaphy. An increase in which of the following best indicates impaired synthetic hepatic function?

(A) Prothrombin time
(B) Serum alanine aminotransferase concentration
(C) Serum albumin/globulin ratio
(D) Serum alkaline phosphatase concentration
(E) Serum bilirubin concentration

BASIC General

Which of the following is suggestive of epiglottitis rather than croup?

(A) A 2-year-old child with a harsh, barking cough
(B) A 4-year-old child who insists on sitting up and leaning forward
(C) Leukocyte count of 10,000/mm3 with marked lymphocytosis
(D) Rectal temperature of 38.5°C
(E) Subglottic narrowing (steeple sign) on lateral neck radiograph

ADVANCED Pediatric

The use of droperidol as a preanesthetic medication has been associated with each of the following EXCEPT

(A) acute anxiety
(B) anterograde amnesia
(C) hypotension
(D) extrapyramidal signs
(E) catalepsy

BASIC Pharmacology & Pharmacokinetics

A previously healthy 28-year-old woman scheduled for laparoscopic tubal ligation becomes, agitated and refuses to undergo the procedure after being brought to the operating room. This behavior most likely resulted from preoperative administration of

(A) droperidol
(B) cimetidine
(C) atropine
(D) meperidine
(E) midazolam

ADVANCED Pharmacology & Pharmacokinetics General