10 Random Questions
Nine months after sustaining an injury to the left forearm, a 30-year-old woman has diffuse, burning pain on the anterior aspect of the forearm and posterior aspect of the hand and discoloration of the skin in the affected areas. The patient should be informed that
- (A) if left untreated, muscle atrophy may develop in the involved limb
- (B) if left untreated, the pain will remain well localized
- (C) physical therapy is not indicated
- (D) the symptoms are directly related to the severity of the initial injury
- (E) the symptoms are most likely secondary to underlying peripheral vascular disease
Each of the following findings is characteristic of chronic reflex sympathetic dystrophy of the extremities EXCEPT
- (A) allodynia
- (B) bone demineralization
- (C) edema
- (D) hyperpathia
- (E) warm skin
A sensory level of T2 is achieved after administration of spinal anesthesia. Which of the following lung volumes is LEAST likely to be affected?
- (A) Expiratory reserve volume
- (B) Inspiratory reserve volume
- (C) Inspiratory capacity
- (D) Tidal volume
- (E) Vital capacity
An anesthesia machine is set to deliver oxygen 2 L/min, nitrous oxide 2 L/min, and sevoflurane. After 30 minutes of stable anesthesia, which of the following, is the most likely cause of a decrease in the oxygen analyzer reading from 50% to 30%?
- (A) A leak in the ventilator bellows
- (B) Accumulation of water on the oxygen sensor membrane
- (C) Calibration at 100% oxygen using less than 100% oxygen
- (D) Disconnection of the wall oxygen hose
- (E) Presence of the oxygen analyzer in the expiratory limb
Each of the following is an effect of rapid infusion of mannitol EXCEPT
- (A) depletion of electrolytes
- (B) impaired platelet adhesiveness
- (C) increased intracranial pressure
- (D) increased intravascular fluid volume
- (E) increased renal blood flow
A 2-year-old child has cardiac arrest during an inguinal herniorrhaphy under general anesthesia administered during a Jackson-Rees system. The graph shows end-tidal PCO2 monitored from the tip of the endotracheal tube during cardiopulmonary resuscitation; minute ventilation is unchanged. Which of the following is the most likely cause of the change beginning at the arrow?
- (A) Decreased fresh gas flow
- (B) Inadequate chest compression
- (C) Increased dead space
- (D) Restoration of cardiac output
- (E) Sampling artifact
A 32-year-old man who is addicted to opioids complains of pain in the PACU one hour after fixation of a mandibular fracture. He has received intravenous morphine 30 mg during the past hour. The most appropriate management is
- (A) continued intravenous administration of morphine until the pain resolves
- (B) intravenous administration of nalbuphine in 5-mg increments until the pain resolves
- (C) intramuscular administration of hydroxyzine 75 mg
- (D) evaluation for entrapment of the mandibular nerve
- (E) evaluation for drug-seeking behavior
Which of the following chemotherapeutic drugs is a cause of pulmonary fibrosis?
- (A) Bleomycin
- (B) Cisplatin
- (C) Cyclosporine
- (D) Daunorubicin
- (E) Vincristine
Arterial oxyhemoglobin desaturation develops more rapidly following apnea in a pregnant patient at term than in a nonpregnant patient with a large intra-abdominal tumor. Which of the following findings in pregnancy is the most likely cause?
- (A) Higher cardiac output
- (B) Higher oxygen consumption
- (C) Larger anatomic dead space
- (D) Smaller blood volume
- (E) Smaller functional residual capacity
Which of the following is an effect of acetazolamide?
- (A) Glucose intolerance
- (B) Increased minute ventilation
- (C) Metabolic alkalosis
- (D) Sinus bradycardia
- (E) Slowed intravenous anesthetic induction