Anesthesia Hub -

10 Random Questions

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

Coughing that occurs during awake intubation is prevented by local anesthetic block of which of the following nerves?

(A) Glossopharyngeal
(B) Hypoglossal
(C) Recurrent laryngeal and glossopharyngeal
(D) Recurrent laryngeal and superior laryngeal
(E) Superior laryngeal and glossopharyngeal

ADVANCED Regional & Pain

Compared with a patient who is breathing spontaneously, a patient in the supine position receiving controlled positive-pressure ventilation will most likely have which of the following findings?

(A) Decreased pulmonary vascular resistance
(B) Decreased ratio of dead space to tidal volume
(C) Increased ventilation of nondependent alveoli
(D) Increased perfusion of nondependent alveoli
(E) Improved matching of ventilation to perfusion

BASIC Respiratory & Critical Care

The fail-safe mechanism on an anesthesia machine is activated by

(A) a wall-oxygen pressure of less than 25 psi
(B) a disconnection between the endotracheal tube and the machine
(C) a nitrous oxide concentration in excess of 85%
(D) an incompetent expiratory valve
(E) no oxygen flow

BASIC Equipment & Physics

Postoperatively a 70-kg patient has a serum sodium value of 130 mEq/L. To increase this value to 140 mEq/L would require the administration of how much sodium in mEq?

(A) 140
(B) 250
(C) 420
(D) 600
(E) 740

BASIC Transfusions & Fluids

Which of the following effects of catecholamine results in the greatest increase in preload?

(A) Augmented contractility
(B) Decreased afterload
(C) Decreased venous capacitance
(D) Improved chronotropism
(E) Increased cardiac output

BASIC Cardiac

The muscular action most likely to remain intact following an axillary brachial plexus block is

(A) flexion at the elbow
(B) extension at the wrist
(C) flexion of digits 3, 4, and 5
(D) extension of digits 1, 2, and 3
(E) extension at the elbow

ADVANCED Regional & Pain

A 40-year-old patient has pain following injection of 8 ml of thiopental 2.5% through a right radial artery catheter. His hand remains pink. Which of the following is the most appropriate next step?

(A) Injection of lidocaine through the catheter
(B) Injection of nitroglycerin through the catheter
(C) Injection of papaverine through the catheter
(D) Right stellate ganglion block
(E) No intervention

ADVANCED General

A patient has a heart rate of 110 bpm one year after heart transplantation. His tachycardia is most likely the result of

(A) altered baroreceptor sensitivity
(B) cardiac denervation
(C) compensation for a fixed stroke volume
(D) cyclosporine
(E) prednisone

ADVANCED Cardiac

A 30-year-old man who is breathing spontaneously has a ventilatory pattern of sustained deep inspiration and occasional expiratory gasps during emergence from general anesthesia after posterior fossa craniotomy. Which of the following is the most likely cause?

(A) Air in the cerebral ventricles
(B) Expiratory obstruction from subglottic edema
(C) Injury to the C3-5 nerve roots
(D) Injury to the pons
(E) Residual neuromuscular paralysis

ADVANCED Neuro