Anesthesia Hub -

10 Random Questions

Which of the following statements concerning brain stem auditory evoked responses is true?

(A) They monitor cortical function
(B) They are not affected by changes in PaCO2
(C) They are not affected by mild hypothermia (34°C)
(D) They are more resistant to anesthetic effects than somatosensory evoked responses
(E) They are abolished coincident with flattening of the EEG

ADVANCED Neuro

A 5-month-old infant with tetralogy of Fallot is scheduled for elective inguinal herniorrhaphy. Which of the following would require the operation to be postponed?

(A) Current propranolol therapy
(B) Hematocrit of 65%
(C) History of "tet spells"
(D) Patent ductus arteriosus
(E) Room air oxygen saturation of 82%

ADVANCED Pediatric Cardiac

In a spontaneously breathing patient, each of the following increases the work of breathing EXCEPT

(A) an increase in respiratory rate by 10/min
(B) a decrease in lung-thorax compliance by 10 cmH2O
(C) an increase in carbon dioxide production by 1 ml/kg/min
(D) a decrease in PaO2 from 80 to 65 mmHg
(E) a 0.1 increase in the ratio of dead space to tidal volume

BASIC Respiratory & Critical Care

A 26-year-old woman comes to a pain clinic because of pain, swelling and limitation of motion in the right knee for six months following a blow to the knee. Findings on knee arthroscopy and leg roentgenograms are normal. The best trial of therapy is

(A) right paravertebral lumbar sympathetic nerve block
(B) epidural administration of a steroid
(C) intrathecal administration of an opioid
(D) tricyclic antidepressants for one month
(E) a nonsteroidal anti-inflammatory drug for five days

ADVANCED Regional & Pain

Each of the following is a characteristic of prostaglandin E1 (alprostadil) pharmacology in an infant EXCEPT:

(A) It is effective in the treatment of large left-to-right shunts
(B) It is a cause of apnea
(C) It is a potent vasodilator
(D) It prevents closure of the ductus arteriosus
(E) It is metabolized rapidly

ADVANCED Pharmacology & Pharmacokinetics Pediatric

In a normally functioning circle anesthesia system, if the length of the inspiratory and expiratory hose is doubled, the mechanical dead space will be

(A) halved
(B) unchanged
(C) doubled
(D) quadrupled
(E) dependent on compression volume

BASIC Equipment & Physics

If the oxygen supply pressure of an anesthesia machine exceeds a set value, which of the following safety devices maintains a constant oxygen flowmeter output?

(A) Cylinder pressure regulator
(B) Fail-safe valve
(C) Flow-control valve
(D) Pipeline inlet check valve
(E) Second-stage regulator

Which of the following statements concerning intercostal nerve block for postoperative pain is true?

(A) Block at the midaxillary line provides analgesia for the anterior and lateral abdominal walls
(B) Blood levels of local anesthetic are higher than after an axillary block
(C) Intravascular injection is unlikely
(D) Loss of resistance assures proper needle placement
(E) Paravertebral spread is prevented by adding epinephrine to the local anesthetic solution

ADVANCED Regional & Pain

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

In a 5-kg boy with Treacher Collins syndrome who is to undergo cleft palate repair, endotracheal intubation is best accomplished with

(A) awake nasal intubation after topical anesthesia
(B) halothane anesthesia with spontaneous ventilation
(C) light isoflurane anesthesia and a muscle relaxant
(D) thiopental and succinylcholine sequence intravenously
(E) nasal intubation after administration of ketamine intramuscularly

ADVANCED Pediatric