10 Random Questions
In performing a diagnostic left lumbar sympathetic block for lower extremity claudication, the tip of the needle ideally should lie at point
- (A) A
- (B) B
- (C) C
- (D) D
- (E) E
After an uncomplicated cesarean delivery, a full-term neonate has intermittent cyanosis. Diaphragmatic effort is vigorous and respiratory distress is relieved while crying. The most likely diagnosis is
- (A) amniotic fluid aspiration
- (B) choanal atresia
- (C) diaphragmatic hernia
- (D) tetralogy of Fallot
- (E) tracheoesophageal fistula
In a patient receiving an epidural analgesic infusion postoperatively, clear fluid is noted to drip back freely from the epidural catheter. Each of the following findings correctly identifies the associated fluid EXCEPT
- (A) precipitation when mixed with an equal volume of thiopental — local anesthetic
- (B) pH 7.1— saline solution
- (C) glucose 55 mg/dl - CSF
- (D) sodium 150 mEq/L - CSF
- (E) PCO2 51 mmHg - CSF
When inspired anesthetic gases are humidified
- (A) most particles 1 to 2 microns in size are deposited in the trachea
- (B) respiratory epithelial cilia become less active
- (C) alveolar water vapor pressure is unchanged
- (D) respiratory heat loss is abolished
- (E) sterilization of breathing apparatus is mandatory
Which of the following decreases dead space in an anesthetic circle system?
- (A) Larger surface area of the expiratory unidirectional valve
- (B) Placing a septum in the Y-piece
- (C) Shorter expiratory limb tubing
- (D) Smaller carbon dioxide absorber
- (E) Smaller reservoir bag
Ketamine decreases
- (A) bronchomotor tone
- (B) intracranial pressure
- (C) intraocular pressure
- (D) salivation
- (E) seizure threshold
The plasma concentration of equal doses of a local anesthetic is highest when the site of administration is
- (A) axillary brachial plexus
- (B) caudal
- (C) intercostal
- (D) lumbar epidural
- (E) subcutaneous
Block of each of the following nerves is required for inguinal herniorrhaphy EXCEPT the
- (A) genitofemoral
- (B) iliohypogastric
- (C) ilioinguinal
- (D) obturator
- (E) twelfth thoracic
Numbness and tingling on the lateral aspect of the thigh 24 hours after uneventful vaginal delivery is most likely a complication of
- (A) forceps delivery
- (B) lithotomy position
- (C) pudendal nerve block
- (D) lumbar epidural anesthesia
- (E) spinal anesthesia
After a gastric stapling procedure, a 150-kg woman is extubated and breathing spontaneously in the recovery room at a rate of 26/min and an FiO2 of 0.5. Arterial blood gas analysis shows PaO2 96 mmHg, PaCO2 44 mmHg, and pH 7.37. The parameter most closely related to her increased alveolar-arterial oxygen tension gradient is
- (A) decreased expiratory reserve volume
- (B) decreased minute volume
- (C) decreased residual volume
- (D) decreased total lung capacity
- (E) rapid respiratory rate