Anesthesia Hub -

10 Random Questions

The development of tachycardia is most hazardous in patients with which of the following conditions?

(A) Aortic insufficiency
(B) Cardiac tamponade
(C) Mitral insufficiency
(D) Mitral stenosis
(E) Ventricular septal defect

Which of the following increases the cephalad spread of hyperbaric intrathecal local anesthetics?

(A) Cephalad-directed needle bevel
(B) Coughing
(C) Lithotomy position
(D) Obesity
(E) Rapid injection

A burn is found at the site of the electrocautery pad. Which of the following is most likely?

(A) The electrosurgical unit was in the bipolar mode
(B) The electrocautery pad became partially detached
(C) The electrosurgical unit ground wire was severed
(D) The line-isolation monitor alarmed
(E) The patient became grounded

BASIC Equipment & Physics

The sudden onset of pulmonary edema can be caused by each of the following EXCEPT

(A) rapid re-expansion of the lungs following pneumothorax
(B) upper airway obstruction
(C) oxygen toxicity
(D) rupture of mitral papillary muscle
(E) severe preeclampsia

ADVANCED Respiratory & Critical Care

Each of the following parameters of cerebral perfusion and metabolism is approximately equal to 50 EXCEPT

(A) cerebral oxygen consumption in ml O2/min for a normal adult
(B) lower limit of mean arterial pressure for cerebral autoregulation in mmHg
(C) normal cerebral blood flow in ml /100 g tissue/min
(D) PaO2 at which cerebral blood flow increases
(E) PaCO2 at which cerebral blood flow doubles

BASIC Neuro

Which of the following factors causes a decrease in mixed venous oxygen saturation?

(A) Arteriovenous fistula
(B) Decreased hemoglobin concentration
(C) Decreased oxygen consumption
(D) Increased cardiac output
(E) Nitroprusside toxicity

BASIC Respiratory & Critical Care

One hour after induction of anesthesia for a posterior fossa craniotomy using opioid, relaxant, and nitrous oxide, the brain begins to protrude through the dura. The most effective measure to decrease intracranial pressure is to

(A) administer additional opioid
(B) decrease PaCO2 from 25 to 15 mmHg
(C) drain cerebrospinal fluid
(D) discontinue nitrous oxide
(E) induce hypotension

ADVANCED Neuro

At equipotent doses, which of the following opioids is most likely to migrate cephalad in cerebrospinal fluid after epidural administration?

(A) Fentanyl
(B) Hydromorphone
(C) Meperidine
(D) Morphine
(E) Sufentanil

BASIC Pharmacology & Pharmacokinetics Regional & Pain

A healthy 10-kg child is flushed and restless after premedication with meperidine 15 mg and scopolamine 0.2 mg intramuscularly. His skin is warm and dry; temperature is 38°C, pulse is 130 bpm, and blood pressure is 90/60 mmHg. The most likely cause is

(A) dehydration
(B) idiosyncratic reaction to meperidine
(C) malignant hyperthermia
(D) neuroleptic malignant syndrome
(E) scopolamine

ADVANCED Pediatric

A 72-year-old man has massive venous hemorrhage during a radical prostatectomy. Blood pressure decreases from 110/60 to 75/30 mmHg and central venous pressure decreases from 12 to 4 mmHg. PetC02 decreases from 34 to 24 mmHg during constant minute ventilation. The most appropriate next step should be to

(A) apply positive end-expiratory pressure to the breathing circuit
(B) attempt to aspirate air from the central venous catheter
(C) expand intravascular volume
(D) place the patient in the Trendelenburg position
(E) turn the patient to the left lateral decubitus position

ADVANCED General