Anesthesia Hub -

10 Random Questions

A 30-kg patient with asthma is receiving general anesthesia and being mechanically ventilated with a measured tidal volume of 300 mL. Increasing the fresh gas flow from 3 L/min to 9 L/min without changing the ventilatory rate or I:E ratio will result in

(A) decreased physiologic dead space
(B) increased delivered tidal volume
(C) increased end-expired carbon dioxide
(D) unchanged delivered minute volume
(E) unchanged peak inspiratory pressure

BASIC Equipment & Physics Respiratory & Critical Care

A patient who is paraplegic secondary to spinal cord transection at T3 develops bradycardia and facial flushing during a nephrectomy under general anesthesia with nitrous oxide, fentanyl, and atracurium. The most likely cause of this response is

(A) release of histamine
(B) stimulation of the carotid sinus
(C) release of prostaglandins
(D) vagal response to peritoneal traction
(E) release of epinephrine

ADVANCED General

The speed of induction of anesthesia with an inhalational agent is increased by

(A) decreased cardiac output
(B) decreased minute ventilation
(C) increased functional residual capacity
(D) right-to-left intracardiac shunt
(E) use of a more soluble agent

BASIC Pharmacology & Pharmacokinetics

Which of the following features is characteristic of the airway in a neonate?

(A) Glottis that is located at the level of the C6 vertebral body
(B) Larger tongue relative to the head than in an adult
(C) Laryngeal mucosa that is densely adherent to the cartilages
(D) More posterior glottis than that of an adult
(E) Narrowest portion of the airway that is located at the arytenoid cartilages

ADVANCED Pediatric

A woman is in labor at 40 weeks' gestation and the fetus is in breech presentation. Which of the following will provide adequate uterine relaxation for vaginal delivery?

(A) Spinal anesthesia
(B) Epidural anesthesia
(C) Halothane anesthesia
(D) Pudendal nerve block
(E) Magnesium sulfate

ADVANCED OB

Following enflurane anesthesia, serum free fluoride concentration is most likely to be increased in association with long-term use of

(A) diazepam
(B) ethanol
(C) isoniazid
(D) phenobarbital
(E) phenytoin

BASIC Pharmacology & Pharmacokinetics

Compared with thiopental, methohexital is characterized by

(A) better absorption after rectal administration
(B) greater protein binding
(C) greater hepatic clearance
(D) larger volume of distribution
(E) more complete biotransformation

BASIC Pharmacology & Pharmacokinetics

In a patient with hypovolemic shock, which of the following factors is the best measure of the overall balance between oxygen supply and demand?

(A) Arterial oxygen content
(B) PetO2
(C) Mixed venous oxygen saturation
(D) PaO2
(E) Transcutaneous oxygen tension

BASIC Respiratory & Critical Care General

A 60-kg 25-year-old woman is undergoing laparoscopy in the Trendelenburg position during general anesthesia. Five minutes after peritoneal inflation, the peak airway pressure required to deliver a tidal volume of 800 ml increases from 25 cmH2O to 60 cmH2O. SpO2 decreases from 100% to 80% and systolic blood pressure increases from 110 mmHg to 140 mmHg. Which of the following is the most likely cause?

(A) Acute tension pneumothorax
(B) Excessively steep Trendelenburg position
(C) Excessive ventilator tidal volume setting
(D) Kink in the endotracheal tube
(E) Massive carbon dioxide embolism

BASIC Respiratory & Critical Care

Which of the following is most reliable for treatment of cerebral artery vasospasm associated with subarachnoid hemorrhage?

(A) Antifibrinolytic therapy
(B) Hyperventilation
(C) Mannitol infusion
(D) Nitroprusside infusion
(E) Volume expansion