Anesthesia Hub -

10 Random Questions

Early deceleration of fetal heart rate

(A) correlates with high concentrations of local anesthetic in maternal blood
(B) frequently occurs with fetal scalp pH greater than 7.25
(C) indicates need for immediate cesarean delivery
(D) indicates subclinical uteroplacental insufficiency
(E) predicts low Apgar scores at delivery

A subarachnoid block to a sensory level of the second thoracic dermatome is associated with each of the following EXCEPT

(A) total sympathetic block
(B) decreased gastrointestinal smooth muscle tone
(C) bradycardia
(D) relaxation of gastrointestinal sphincters
(E) decreased renal blood flow

BASIC Regional & Pain

Pulse oximetry accurately reflects SaO2 in which of the following situations?

(A) Administration of indocyanine green
(B) Administration of methylene blue
(C) Carboxyhemoglobinemia
(D) 40% fetal hemoglobin concentration
(E) Methemoglobinemia

BASIC Equipment & Physics

Each of the following conditions can be accurately evaluated with transesophageal echocardiography EXCEPT

(A) intimal tear at the aortic arch
(B) intracardiac air
(C) left atrial thrombus
(D) patent foramen ovale
(E) right atrial myxoma

ADVANCED Cardiac

In a patient receiving an epidural analgesic infusion postoperatively, clear fluid is noted to drip back freely from the epidural catheter. Each of the following findings correctly identifies the associated fluid EXCEPT

(A) precipitation when mixed with an equal volume of thiopental — local anesthetic
(B) pH 7.1— saline solution
(C) glucose 55 mg/dl - CSF
(D) sodium 150 mEq/L - CSF
(E) PCO2 51 mmHg - CSF

ADVANCED Neuro Regional & Pain

Perception of pain from cutaneous sources involves each of the following EXCEPT

(A) frontal lobe gyri
(B) lateral spinothalamic tracts
(C) periaqueductal gray matter
(D) spinal dorsal horn lamina V
(E) unmyelinated C fibers

BASIC Regional & Pain

A 70-kg, 22-year-old man who is unconscious after a closed head injury is to undergo emergency splenectomy. He is anesthetized with thiopental, given pancuronium for paralysis, and started on nitrous oxide and oxygen 50% each with controlled ventilation (tidal volume 700 ml, rate 10/min). Pulse is 70 bpm, blood pressure is 160/100 mmHg, PaO2 is 65 mmHg, PaC02 is 45 mmHg, and pH is 7.30. In adjusting the ventilator at this time, which of the following is most appropriate?

(A) Add 10 cmH2O positive end-expiratory pressure (PEEP), increase respiratory rate to 14/min
(B) Add sufficient PEEP to increase PaO2 to 80 mmHg
(C) Add 10 cmH2O PEEP, increase FlO2 to 1.0
(D) Increase tidal volume to 1000 ml, increase FiO2 to 1.0
(E) Increase tidal volume to 1200 ml, decrease respiratory rate to 8/min

BASIC Respiratory & Critical Care

Compared with dopamine, dobutamine

(A) is more useful in patients taking monoamine oxidase inhibitors because it depends on the release of norepinephrine for its effect
(B) is more useful in patients in right heart failure because it does not increase pulmonary vascular resistance
(C) has no positive chronotropic response
(D) induces diuresis without increasing cardiac output
(E) in doses greater than 10 mcg/kg/min increases systemic vascular resistance more than similar doses of dopamine

BASIC Pharmacology & Pharmacokinetics Cardiac

The carbon dioxide/ventilation response curve

(A) is primarily a measure of the integrity of the peripheral chemoreceptors
(B) shows parallel displacement to the left in the presence of opioids
(C) is linear between a PaCO2 of 20 and 120 mmHg
(D) shows progressive changes in slope with increased doses of halogenated anesthetics
(E) is unaffected by a decrease in PaO2 to 60 mmHg

BASIC Respiratory & Critical Care

A 70-kg 78-year-old man undergoing small-bowel resection during anesthesia with isoflurane in oxygen becomes hypotensive and develops frothy pink sputum in the endotracheal tube. Heart rate is 50 bpm, blood pressure is 75/60 mmHg, pulmonary artery occlusion pressure is 22 mmHg, and cardiac output is 1.7 L/min. The most appropriate initial step in management is administration of which of the following?

(A) Albumin
(B) Digoxin
(C) Dopamine
(D) Esmolol
(E) Nitroglycerin

BASIC Pharmacology & Pharmacokinetics General