10 Random Questions
Which of the following statements concerning the check valve of the common gas outlet on an anesthesia gas machine is true?
(A) It prevents backflow into vaporizers
(B) It prevents delivery of a hypoxic mixture
(C) It prevents rebreathing
(D) It is located downstream from the oxygen flush valve
(E) It is required for proper functioning of the proportioning system
Reveal Answer
BASIC
Equipment & Physics
A delay in surgery for 24 to 48 hours for preoperative stabilization and preparation is acceptable in each of the following neonatal conditions EXCEPT
(A) biliary atresia
(B) diaphragmatic hernia
(C) meningomyelocele
(D) pyloric stenosis
(E) tracheoesophageal fistula
Reveal Answer
ADVANCED
Pediatric
Intraocular pressure is
(A) decreased by glycopyrrolate
(B) increased by hyperventilation
(C) decreased by halothane
(D) increased by nondepolarizing muscle relaxants
(E) increased by phenylephrine eye drops
Reveal Answer
BASIC
Pharmacology & Pharmacokinetics
Mismatching of ventilation to perfusion in the lung is greatest in which of the following situations?
(A) Awake patient, spontaneous ventilation, lateral decubitus position
(B) Anesthetized patient, controlled ventilation, supine position
(C) Anesthetized patient, controlled ventilation, lateral decubitus position
(D) Anesthetized patient, controlled ventilation, sitting position
(E) Anesthetized patient, spontaneous ventilation, prone position
Reveal Answer
BASIC
Respiratory & Critical Care
Which of the following correctly describes the anatomic location of the stellate ganglion?
(A) Anterior to the transverse process of C5
(B) Anterior to the transverse process of C7
(C) Posterior to the prevertebral fascia
(D) Posterior to the vertebral artery
(E) Lateral to the carotid artery
Reveal Answer
ADVANCED
Regional & Pain
Compared with a normal child, which of the following is expected during inhalation induction in a child with a 2:1 left-to-right intracardiac shunt?
(A) Decreased rate of rise of alveolar anesthetic tension
(B) Decreased anesthetic concentration in pulmonary artery blood
(C) Decreased cerebral blood flow
(D) Increased anesthetic concentration in vena cava blood
(E) No difference in time for anesthetic induction
Reveal Answer
ADVANCED
General
Pediatric
The plasma concentration of equal doses of a local anesthetic is highest when the site of administration is
(A) axillary brachial plexus
(B) caudal
(C) intercostal
(D) lumbar epidural
(E) subcutaneous
Reveal Answer
ADVANCED
Regional & Pain
During insufflation of the peritoneal cavity with carbon dioxide at the start of laparoscopy, heart rate increases to 140 bpm, blood pressure decreases to 70/40 mmHg, and a loud murmur is heard through the esophageal stethoscope. The most appropriate immediate step is to
(A) administer a vasoconstrictor
(B) infuse crystalloid solution rapidly
(C) discontinue the inhaled anesthetic
(D) insert a central venous catheter
(E) deflate the abdomen
Reveal Answer
ADVANCED
General
Which of the following pre-existing conditions predisposes to new-onset third-degree heart block during pulmonary artery catheterization?
(A) First-degree heart block
(B) Left bundle branch block
(C) Sick sinus syndrome
(D) Sinus bradycardia
(E) Wenckebach second-degree heart block
Reveal Answer
ADVANCED
General
Cardiac
Failure to block the musculocutaneous nerve adequately during the axillary approach to brachial plexus block will result in inadequate anesthesia of the
(A) thumb and index finger
(B) dorsum of the wrist
(C) lateral aspect of the forearm
(D) lateral aspect of the elbow
(E) medial aspect of the upper arm
Reveal Answer