10 Random Questions
Which of the following should be included in the preoperative management of a 12-year-old patient with Duchenne's muscular dystrophy who is unable to ambulate?
- (A) Determination of serum creatine kinase concentration
- (B) Determination of serum potassium concentration
- (C) Liver function profile
- (D) Echocardiography
- (E) Dantrolene prophylaxis
Patients with acute alcohol intoxication are at increased risk for each of the following complications of general anesthesia EXCEPT
- (A) aspiration of gastric contents
- (B) hyperglycemia
- (C) hypothermia
- (D) ketoacidosis
- (E) respiratory depression
A 55-year-old man undergoes abdominal perineal resection in the lithotomy position during combined epidural (bupivacaine 0.5%) and isoflurane anesthesia. The epidural catheter is left in place with an infusion of fentanyl 50 jug/hr. Twelve hours after surgery, the patient has left footdrop. Which of the following is the most likely explanation?
- (A) Epidural hematoma
- (B) Epidural opioid
- (C) Inadequate padding of the knee during surgery
- (D) Nerve injury from the epidural catheter
- (E) Residual effects of the local anesthetic
Prilocaine is NOT recommended for obstetric regional anesthesia because it
- (A) causes fetal methemoglobinemia
- (B) has a very short duration of action
- (C) is not metabolized by the newborn
- (D) is the most toxic of the amide local anesthetics
- (E) produces a longer motor block than sensory block
Spinal anesthesia at a T6 sensory level is most likely to improve cardiac output in patients with
- (A) aortic stenosis
- (B) asymmetric septal hypertrophy (IHSS)
- (C) chronic constrictive pericarditis
- (D) cor pulmonale
- (E) mitral regurgitation
Mepivacaine 40 ml of a 1% solution with epinephrine 1:200,000 is injected into the brachial plexus sheath at the axilla after eliciting a paresthesia in the ulnar nerve distribution. Which of the following is most likely to remain intact?
- (A) Adduction of the thumb
- (B) Flexion at the wrist
- (C) Sensation of the lateral forearm
- (D) Sensation on the palmar surface of the lateral three and one half fingers
- (E) Sensation on the palmar surface of the medial one and one half fingers
The fetal heart rate and uterine contraction tracings shown are most consistent with
- (A) fetal acidosis
- (B) fetal cerebral hemorrhage
- (C) fetal head compression
- (D) fetal hypoxia
- (E) uteroplacental insufficiency
Which of the following statements concerning relationships among alveolar pressure, volume, and surface tension is true?
- (A) Surface tension of surfactant decreases as alveolar volume decreases
- (B) Surface tensions of water and of surfactant behave similarly as volume decreases
- (C) Changes in alveolar surface tension with volume are the same during expansion as during contraction
- (D) Pressure in the alveolus is inversely related to surface tension
- (E) Pressure in the alveolus is directly related to alveolar radius
A 48-year-old woman with von Willebrand's disease is scheduled for a hysterectomy. The most appropriate initial preoperative therapy to decrease bleeding is administration of
- (A) cryoprecipitate
- (B) desmopressin (DDAVP)
- (C) fresh frozen plasma
- (D) platelets
- (E) vitamin K
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