Anesthesia Hub -

10 Random Questions

Which of the following statements concerning barbiturate protection from cerebral ischemia is true?

(A) It may be achieved with dosages low enough to avoid cardiovascular effects
(B) It is linearly dose-related
(C) It improves neurologic outcome following cardiac arrest
(D) It is most useful in patients with focal ischemia
(E) It is unrelated to EEG activity

ADVANCED Neuro

During attempted awake intubation, the patient gags when the laryngoscope presses on the base of the tongue. Which of the following cranial nerves is responsible for the afferent limb of this reflex?

(A) Trigeminal
(B) Facial
(C) Glossopharyngeal
(D) Vagus
(E) Hypoglossal

BASIC Regional & Pain

Which of the following statements concerning use of a Bain circuit is true?

(A) Fresh gas flow can be as low as the patient's minute ventilation
(B) Heat conservation is better than with a circle system
(C) Lower flows can be used with controlled ventilation than with spontaneous ventilation
(D) Lower fresh gas flows can be used than with a Jackson-Rees system
(E) The concentration of inspired vapors can be changed rapidly

BASIC Equipment & Physics

Addition of 20 cmH2O positive end-expiratory pressure to a patient receiving controlled mechanical ventilation decreases cardiac output and left ventricular function by

(A) increasing right ventricular preload
(B) increasing right ventricular afterload
(C) increasing left ventricular preload
(D) increasing left ventricular afterload
(E) producing myocardial ischemia

BASIC Respiratory & Critical Care General Cardiac

Each of the following would slow induction with a volatile anesthetic agent EXCEPT

(A) hypoalbuminemia
(B) hyperlipemia
(C) clean rubber tubing in the circle system
(D) fresh soda lime
(E) obesity

Nitrous oxide is contraindicated during

(A) injection of sulfur hexafluoride for retinal tamponade
(B) repair of open eye injury
(C) scleral buckling with synthetic bands
(D) strabismus surgery
(E) trabeculectomy for glaucoma

Preoperative evaluation of a patient who has marked malnutrition will demonstrate each of the following EXCEPT

(A) decreased respiratory muscle function
(B) decreased serum albumin concentration
(C) decreased metabolic rate
(D) suppressed immune function
(E) decreased extracellular fluid volume

ADVANCED Respiratory & Critical Care

The carbon dioxide/ventilation response curve

(A) is primarily a measure of the integrity of the peripheral chemoreceptors
(B) shows parallel displacement to the left in the presence of opioids
(C) is linear between a PaCO2 of 20 and 120 mmHg
(D) shows progressive changes in slope with increased doses of halogenated anesthetics
(E) is unaffected by a decrease in PaO2 to 60 mmHg

BASIC Respiratory & Critical Care

During insertion of a Harrington rod with deliberate hypotension for correction of spinal scoliosis, accurate interpretation of somatosensory evoked potentials requires

(A) core temperature greater than 35∞C
(B) hematocrit of at least 25%
(C) mean arterial pressure greater than 70 mmHg
(D) P02 of at least 80 mmHg
(E) reversal of neuromuscular block

In an Infant, spinal anesthesia to a sensory level of T8 is achieved with tetracaine administered at the L2-3 interspace. Compared with spinal anesthesia to the same sensory level in an adult, this anesthetic is associated with a

(A) higher risk for neurotoxicity
(B) higher risk for systemic toxicity
(C) lower risk for spinal cord injury
(D) more significant decrease in blood pressure
(E) shorter duration of action

ADVANCED Pediatric Regional & Pain