Anesthesia Hub -

10 Random Questions

A patient is scheduled for amputation of the third metatarsal. A tourniquet will not be used during the procedure. The most effective anesthesia will be provided by block of which of the following nerves?

(A) Femoral
(B) Common peroneal and tibial
(C) Sural and deep peroneal
(D) Sural and tibial
(E) Tibial, saphenous, and deep peroneal

ADVANCED Regional & Pain

During steady-state intraoperative controlled mechanical ventilation, exhaled tidal volume will be increased by

(A) changing to more compliant tubing in the ventilatory circuit
(B) increasing fresh gas flow in the anesthesia machine
(C) increasing nitrous oxide concentration in the inspired mixture
(D) increasing ventilatory rate
(E) moving the volume sensor as far as possible from the patient

BASIC Equipment & Physics

When succinylcholine is administered intravenously to infants, intragastric pressure

(A) is usually unchanged
(B) increases to a peak of 30 cmH20 within two minutes
(C) increases because of abdominal muscle fasciculations
(D) increases because of an acetylcholine-like effect on the vagus nerve
(E) peaks and subsides within five minutes

ADVANCED Pharmacology & Pharmacokinetics Pediatric

Which of the following statements concerning anesthesia machine flowmeters is true?

(A) At high gas flows, viscosity is the predominant determinant of flow rate
(B) At low flow rates, gas density is the predominant determinant of flow rate
(C) Flowmeters should be upstream from the oxygen fail-safe device
(D) The oxygen flowmeter should be upstream from other flowmeters
(E) Tapered flow tubes allow a constant decrease in pressure across the float

BASIC Equipment & Physics

After brachial plexus block, a patient has sensation over the inner aspect of the upper arm. Block of which of the following nerves would obtund this sensation?

(A) Intercostobrachial
(B) Median
(C) Musculocutaneous
(D) Radial
(E) Ulnar

ADVANCED Regional & Pain

A 32-year-old man is scheduled for hernia repair. He underwent heart transplantation for cardiomyopathy five years ago. Which of the following findings is most likely?

(A) Absence of coronary atherosclerosis
(B) Biventricular hypokinesis on echocardiography
(C) Down-regulation of cardiac beta-adrenergic receptors
(D) Increased heart rate at rest
(E) Right ventricular hypertrophy

ADVANCED General Cardiac

Monitoring sensory evoked potentials may be useful in detecting functional derangement of each of the following EXCEPT

(A) cranial nerve pathways during posterior fossa operations
(B) motor pathways during anterior cervical discectomy
(C) dorsal column pathways during operations for spinal tumors
(D) visual pathways during operations on the sphenoid wing
(E) cortical pathways during carotid artery operations

ADVANCED Neuro

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

A Fluotec vaporizer is set to administer halothane 4% using a fresh gas flow of 4 L/min. If the diluent gas flow is increased to 8 L/min, and at the same time the room temperature increases from 20 to 25°C, the approximate concentration of halothane delivered to the patient would be

(A) 2%
(B) 2.5%
(C) 3%
(D) 4%
(E) 5%

BASIC Equipment & Physics

Which of the following findings is most likely in an 85-kg 30-year-old man who is breathing spontaneously through 6-mm endotracheal tube?

(A) Decreased PetCO2
(B) Decreased SpO2
(C) Increased minute ventilation
(D) Increased respiratory rate
(E) Increased tidal volume

BASIC Respiratory & Critical Care