Anesthesia Hub -

10 Random Questions

A 58-year-old woman with rheumatoid arthritis and hyperactive gag reflex requires awake intubation prior to cervical spine stabilization. Which of the following regional nerve blocks is most appropriate?

(A) Deep cervical plexus
(B) Glossopharyngeal nerve
(C) Hypoglossal nerve
(D) Superior laryngeal nerve
(E) Trigeminal nerve

ADVANCED Regional & Pain

Each of the following statements about the anatomy of the autonomic nervous system is true EXCEPT:

(A) Preganglionic cell bodies are located in the central nervous system
(B) Postganglionic neurons are located in outlying ganglia
(C) The parasympathetic ganglia are located near their target organs
(D) The adrenal gland is innervated only by the sympathetic nervous system
(E) The parasympathetic nervous system has thoracic and sacral segments

BASIC General

A 25-year-old man with known rheumatic heart disease is being evaluated in the critical care unit. Despite decreasing cardiac output, mixed venous blood from a pulmonary artery catheter shows an increase in Sv02. Which of the following is the most likely cause?

(A) Decreasing hematocrit
(B) Hypothermia to 35°C
(C) Metabolic alkalosis
(D) Mitral regurgitation
(E) Wedging of the catheter

When antagonizing neuromuscular block produced by pancuronium, the combination of simultaneously administered anticholinergic and anticholinesterase drugs that is most likely to produce bradycardia is

(A) glycopyrrolate and pyridostigmine
(B) atropine and edrophonium
(C) glycopyrrolate and edrophonium
(D) atropine and neostigmine
(E) glycopyrrolate and neostigmine

BASIC Pharmacology & Pharmacokinetics

Severe nausea and vomiting in the PACU is most effectively treated with a drug that acts as an antagonist at which of the following receptors?

(A) Alpha-adrenergic
(B) Beta-adrenergic
(C) Dopamine
(D) GABA
(E) Glutamate

BASIC Pharmacology & Pharmacokinetics

Five minutes after initiating one-lung ventilation using a double-lumen endobronchial tube, a 70-year-old patient has a decrease in Sp02 from 99% to 90%. Tidal volume and respiratory rate are unchanged. Fiberoptic bronchoscopy verifies appropriate positioning of the tube. Which of the following is the most likely cause of the desaturation?

(A) Blood flow to the nondependent lung
(B) Failure of hypoxic pulmonary vasoconstriction in the dependent lung
(C) Inadequate filling of the bronchial cuff
(D) Inadequate minute ventilation
(E) Surgical manipulation of the nondependent lung

ADVANCED General Respiratory & Critical Care

Pulsus paradoxus is commonly seen during anesthesia in patients with each of the following conditions EXCEPT

(A) severe asthma
(B) right-sided heart failure
(C) hypovolemia
(D) atrial septal defect
(E) obesity

BASIC General Cardiac

Delirium produced by high doses of atropine can be reversed by intravenous injection of

(A) diphenhydramine
(B) flumazenil
(C) naloxone
(D) neostigmine
(E) physostigmine

BASIC Pharmacology & Pharmacokinetics

Measurement of mixed expired carbon dioxide concentration is necessary for the determination of

(A) dead space
(B) lung-thorax compliance
(C) physiologic shunt fraction
(D) diffusing capacity of the lungs
(E) ventilatory response to carbon dioxide

During right upper lobectomy and one-lung ventilation with a double-lumen endotracheal tube, the PaO2 decreases to 40 mmHg. The PaCO2 is 39 mmHg. Which of the following is most appropriate?

(A) Confirm position of the tube with bronchoscopy
(B) Apply 5 cmH20 continuous positive airway pressure to the nondependent lung
(C) Apply 5 cmH20 positive end-expiratory pressure to the dependent lung
(D) Resume two-lung ventilation
(E) Clamp the pulmonary artery of the nondependent lung

ADVANCED General Respiratory & Critical Care