10 Random Questions
Which of the following statements concerning the effects of glycopyrrolate is true?
- (A) It decreases gastric pH
- (B) It causes bronchoconstriction
- (C) It decreases lower esophageal sphincter tone
- (D) It does not prevent succinylcholine-induced bradycardia
- (E) It causes a central anticholinergic syndrome
When performed with identical doses, which of the following types of regional block is associated with the highest plasma concentration of the drug?
- (A) Brachial plexus
- (B) Caudal
- (C) Intercostal
- (D) Subcutaneous infiltration
- (E) Thoracic epidural
Which Mapleson breathing circuit shown in the illustration permits the LEAST amount of fresh gas inflow to prevent rebreathing during spontaneous ventilation?
- (A) A
- (B) B
- (C) C
- (D) D
- (E) E
Which of the following drugs increases cerebral blood flow while decreasing cerebral metabolic rate?
- (A) Etomidate
- (B) Fentanyl
- (C) Isoflurane
- (D) Lidocaine
- (E) Midazolam
After receiving an axillary block for carpal tunnel release, a patient has pain on incision. Which of the following nerves should be blocked at the level of the elbow to relieve the pain?
- (A) Intercostobrachial
- (B) Median
- (C) Musculocutaneous
- (D) Radial
- (E) Ulnar
A 40-year-old woman has continuous nondermatomal burning pain of the distal foot four weeks after sustaining a metatarsal fracture. On examination, the foot is mildly swollen, tender, and cool. Which of the following statements concerning this condition is true?
- (A) A radiograph of the distal bones of the painful foot will show severe osteoporosis
- (B) A technetium scan of the distal joints of the painful foot will show decreased uptake
- (C) Early use of opioid analgesia will prevent progression of the symptoms
- (D) Intravenous phentolamine will relieve the pain
- (E) The chance of spontaneous recovery within eight weeks is greater than 80%
A previously healthy 26-year-old man sustains massive soft tissue injury in a motor vehicle accident. He appears to be well for 48 hours after initial resuscitation, then develops marked tachypnea. Arterial blood gas analysis would be most likely to show which of the following values? (pH, PaCO2, PaO2, FiO2)
- (A) 7.53 60 75 .21
- (B) 7.12 25 110 .30
- (C) 7.09 60 90 .40
- (D) 7.53 25 55 .80
- (E) 7.28 40 195 .80
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
A 70-year-old man with mild hypertension and aortoiliac occlusive disease is undergoing aortofemoral bypass grafting. Which of the following interventions is most effective in maintaining renal perfusion during infrarenal aortic clamping?
- (A) Infusion of dopamine at 2 mcg/kg/min
- (B) Infusion of sodium nitroprusside
- (C) Intravenous administration of furosemide
- (D) Intravenous administration of mannitol
- (E) Volume loading with crystalloid
Each of the following conditions is a cause of agitation in a patient following transurethral resection of the prostate EXCEPT
- (A) bladder distention
- (B) glycine absorption
- (C) inadequate analgesia
- (D) serum sodium concentration of 127 mEq/L
- (E) systolic pressure of 60 mmHg