10 Random Questions
A patient undergoes axillary block for placement of an arteriovenous shunt in the forearm. Blockade of the musculocutaneous nerve is not achieved. Injection of a local anesthetic at which of the following sites will provide the required sensory block?
- (A) Between the tendon of the palmaris longus and flexor carpi radialis
- (B) Body of coracpbrachialis muscle
- (C) Medial to the brachial artery at the elbow
- (D) Proximal to the medial epicondyle against the medial surface of the humerus
- (E) Superficial to the pulse of the axillary artery
A 68-year-old man with severe depression is scheduled for electroconvulsive therapy. He had a myocardial infarction two years ago and continues to have angina on exertion. Pretreatment with which of the following drugs is most likely to maintain stability during the procedure?
- (A) Esmolol
- (B) Fentanyl
- (C) Hydralazine
- (D) Lidocaine
- (E) Midazolam
Dantrolene
- (A) antagonizes the effect of nondepolarizing muscle relaxants
- (B) produces clinically detectable muscle weakness when administered intravenously prior to anesthesia
- (C) is indicated for neuroleptic malignant syndrome
- (D) may cause hepatic failure when used prophylactically before anesthesia
- (E) has increased effectiveness when combined with calcium entry blockers
The most likely cause of this capnographic tracing obtained just after laryngoscopy and intubation is
- (A) esophageal intubation
- (B) partial obstruction of the endotracheal tube
- (C) pulmonary embolus
- (D) insertion of an endotracheal nasogastric tube
- (E) mild bronchospasm
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
After removing the electrocautery pad from the thigh, a burn is noted at that site. Which of the following most likely contributed to this injury?
- (A) A line-isolation monitor fault
- (B) Current leak from the EKG module
- (C) Defective grounding of the electrocautery unit
- (D) Dried gel on the electrocautery pad
- (E) Excessive current setting for cutting mode
During an otherwise uneventful nitrous oxide-sevoflurane anesthetic in a spontaneously breathing patient, 85% nitrous oxide is accidently administered, resulting in a PO2 of 48 mmHg. Which of the following would be expected?
- (A) Tachycardia
- (B) Sweating
- (C) Tachypnea
- (D) Hyperactive EEG
- (E) None of the above
A 33-year-old woman is scheduled for emergency appendectomy under general anesthesia. She has hypertrophic cardiomyopathy and has had two episodes of syncope in the past year. Which of the following statements concerning anesthetic management is true?
- (A) Spinal anesthesia is preferred to general anesthesia
- (B) Deep levels of isoflurane anesthesia are appropriate
- (C) Fluid administration should be restricted
- (D) Phenylephrine is preferred to ephedrine to treat hypotension
- (E) Positive end-expiratory pressure will decrease left ventricular outflow obstruction
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
Compared with morphine 5 mg administered epidurally at T12, morphine 5 mg administered intravenously is associated with
- (A) greater incidence of urinary retention
- (B) less intense analgesia
- (C) less nausea and vomiting
- (D) longer duration of analgesia
- (E) longer time to maximum analgesia