Anesthesia Hub -

10 Random Questions

Which of the following statements regarding carbon monoxide poisoning is true?

(A) Breathing 100% oxygen at 1 atmosphere reduces the carboxyhemoglobin half-life
(B) Effective treatment includes administration of methylene blue
(C) It is commonly associated with respiratory acidosis
(D) It is incompatible with a normal Sp02 while breathing room air
(E) The oxyhemoglobin dissociation curve is shifted to the right

ADVANCED Respiratory & Critical Care General

Compared with healthy nonhypertensive patients, in patients with untreated hypertension undergoing anesthesia and operation,

(A) cerebral ischemia may occur at higher blood pressures
(B) intravenous fluid should be restricted before induction
(C) left ventricular hypertrophy enhances compensation for intraoperative fluid loss
(D) responses to sympathetic stimulation are decreased
(E) the incidence of intraoperative hypotension is lower

ADVANCED General

Inhibition of labor by terbutaline causes each of the following maternal side effects EXCEPT

(A) hyperkalemia
(B) hypotension
(C) ventricular dysrhythmias
(D) hyperglycemia
(E) pulmonary edema

ADVANCED Pharmacology & Pharmacokinetics OB

Which of the following is the most likely cause of the rapid onset of local anesthesia when sodium bicarbonate is added to lidocaine?

(A) Decreased extracellular calcium ion concentration
(B) Increased extracellular pH
(C) Increased intracellular pH
(D) Increased ionized lidocaine diffusion
(E) Increased nonionized lidocaine concentration

BASIC Pharmacology & Pharmacokinetics

A 43-year-old man has been hoarse for two weeks since undergoing anterior cervical fusion at C7-8 for treatment of a herniated disk. Laryngoscopy shows paralysis of the right vocal cord. Which of the following is the most likely cause?

(A) Damage to the glossopharyngeal nerve during surgery
(B) Damage to the superior laryngeal nerve during surgery
(C) Nerve root compression by the herniated disk
(D) Stretching of the recurrent laryngeal nerve during surgery
(E) Trauma to the vocal cords during intubation

A comatose 40-year-old man is to undergo evacuation of an acute subdural hematoma. His left pupil is dilated and blood is present behind the left tympanic membrane. Each of the following is an acceptable intervention EXCEPT

(A) application of 5 cm H20 positive end-expiratory pressure
(B) blind nasotracheal intubation
(C) use of isoflurane
(D) use of nitrous oxide
(E) use of succinylcholine

A 35-year-old woman with a grade III subarachnoid hemorrhage is undergoing clipping of a middle cerebral artery aneurysm 48 hours after initial hemorrhage. Which of the following drugs used to induce hypotension is LEAST likely to affect intracranial pressure?

(A) Esmolol
(B) Hydralazine
(C) Isoflurane
(D) Nitroglycerin
(E) Sodium nitroprusside

ADVANCED Pharmacology & Pharmacokinetics Neuro

In a 35-year-old patient, which of the following is associated with an increased duration of clinical narcosis following infusion of a total dose of 10 mg/kg thiopental over three hours?

(A) Alcoholism in remission
(B) Asthma
(C) Fever
(D) Obesity
(E) Use of appetite suppressants

BASIC Pharmacology & Pharmacokinetics

During enflurane anesthesia for colectomy in a 75-year-old man with sepsis, urine output decreases to 10 ml/hr. Heart rate is 120 bpm, blood pressure is 100/50 mmHg, central venous pressure is 10 mmHg, and pulmonary artery occlusion pressure is 15 mmHg. The most appropriate management at this time is to

(A) measure cardiac output
(B) increase fluid administration
(C) infuse dopamine
(D) administer propranolol
(E) switch from enflurane to isoflurane

ADVANCED General

Which of the following is the most likely cause of the coronary steal phenomenon?

(A) Idiopathic hypertrophic subaortic stenosis (IHSS)
(B) Decreased cardiac contractility
(C) Dilation of coronary arterioles
(D) Dilation of epicardial coronary arteries
(E) Increased systemic vascular resistance

ADVANCED Cardiac