Anesthesia Hub -

10 Random Questions

Compared with adults, neonates are more likely to become hypoxemic following anesthesia and extubation because of a relatively

(A) higher rate of oxygen consumption
(B) greater sensitivity to neuromuscular blockade
(C) larger Vd/Vt ratio
(D) lower blood pressure
(E) smaller functional residual capacity

ADVANCED Pediatric

A 10-week-old infant born at 28 weeks gestation is scheduled for elective repair of bilateral inguinal hernias. It is most appropriate to

(A) delay the operation until the infant is 6 months old
(B) transfuse blood preoperatively if hemoglobin concentration is 9 g/dl
(C) avoid tracheal intubation
(D) limit inspired oxygen concentration to less than 50%
(E) monitor for apnea for 24 hours postoperatively

ADVANCED Pediatric

An sevoflurane vaporizer is filled with isoflurane and the vaporizer dial is set at 1%. Which of the following will occur?

(A) Less than 1% isoflurane will be delivered
(B) More than 1% isoflurane will be delivered
(C) Thymol precipitation will prevent vaporization
(D) The vaporizer bypass will not open
(E) The vaporizer will be damaged

BASIC Equipment & Physics

A 52-year-old woman undergoes facial surgery during general endotracheal anesthesia. The ventilator is set to deliver a tidal volume of 600 ml and a respiratory rate of 10/min at an FiO2 of 1.0. SpO2 is 100%, peak inspiratory pressure is 18 cmH2O, and PetCO2 is 40 mmHg. The surgeon flexes the patient's head so the chin touches the chest. Which of the following findings indicates that endobronchial intubation has NOT occurred?

(A) Fluctuating capnographic waveform
(B) Greater expiratory volume than inspiratory volume
(C) Unchanged SpO2
(D) Unchanged PetCO2
(E) Unchanged peak inspiratory pressure

BASIC Respiratory & Critical Care

Which of the following is an effect of acetazolamide?

(A) Glucose intolerance
(B) Increased minute ventilation
(C) Metabolic alkalosis
(D) Sinus bradycardia
(E) Slowed intravenous anesthetic induction

ADVANCED Pharmacology & Pharmacokinetics

The concentration of bupivacaine is higher in maternal blood than in fetal blood because

(A) bupivacaine is metabolized in the placenta
(B) maternal blood has a higher pH
(C) maternal blood has greater plasma protein binding
(D) maternal hemoglobin has a higher affinity for bupivacaine
(E) placental transfer of bupivacaine is limited

ADVANCED Pharmacology & Pharmacokinetics OB

The low fetal/maternal plasma ratio of bupivacaine compared with lidocaine is due to

(A) fetal tissue binding
(B) fetal plasma protein binding
(C) maternal plasma protein binding
(D) ionization in maternal blood
(E) ionization in fetal blood

ADVANCED OB Pharmacology & Pharmacokinetics

Which of the following EEG findings is expected during maintenance anesthesia with high-dose fentanyl (50 ju-g/kg), nitrous oxide, and oxygen?

(A) Low-frequency high-voltage activity
(B) Nondominant hemispheric slowing
(C) Predominant alpha activity
(D) Prominent beta activity
(E) Spindle-shaped bursts

A 4-year-old child has just undergone a one-hour tonsillectomy with a volatile anesthetic, nitrous oxide, and oxygen. Which of the following will result in the most rapid emergence?

(A) Decreased PaCO2
(B) Increased cardiac output
(C) Increased fresh gas flow
(D) Increased solubility of the volatile agent
(E) Presence of a ventricular septal defect

ADVANCED Pediatric

An apneic adult is receiving an oxygen flow of 4 L/min through a rigid bronchoscope. After five minutes of apnea, which of the following findings is most likely?

(A) A decrease in cardiac output
(B) A decrease in pulmonary vascular resistance
(C) A decrease in SpO2 from 99% to 89%
(D) An increase in PaCO2 of 18 mmHg
(E) Serum bicarbonate concentration of 30 mEq/L

BASIC Respiratory & Critical Care