10 Random Questions
In the supraclavicular region, the brachial plexus
- (A) is anterior to the apex of the pleura
- (B) is anterior to the subclavian artery
- (C) is posterior to the medial scalene muscle
- (D) is enclosed in a sheath with the subclavian vein
- (E) no longer contains fibers from the Tl nerve root
Neurolytic block is most appropriate for
- (A) abdominal pain secondary to hepatic carcinoma
- (B) abdominal pain secondary to chronic pancreatitis
- (C) persistent chest wall pain secondary to intercostal neuralgia following a thoracotomy for trauma
- (D) reflex sympathetic dystrophy of the upper extremity with an excellent but transient response to a series of stellate ganglion blocks with local anesthetic
- (E) a diabetic patient scheduled for surgical sympathectomy to relieve unilateral lower extremity pain secondary to severe peripheral vascular disease
The tracing shown is from a femoral artery catheter. Which of the following is the most likely explanation?
- (A) An air bubble greater than 1 ml is in the tubing
- (B) The diastolic pressures is factitiously high
- (C) Mean blood pressure is inaccurate
- (D) The monitoring system is underdamped
- (E) Systolic pressure in the aortic arch exceeds 200 mmHg
The test dose of local anesthetic administered through an epidural needle or catheter should be sufficient to produce
- (A) bradycardia
- (B) seizure activity
- (C) hypotension
- (D) segmental analgesia
- (E) spinal anesthesia
Which of the following factors is LEAST likely to affect serum ionized calcium concentration following blood transfusion?
- (A) Age of blood transfused
- (B) Amount of blood transfused
- (C) Body temperature
- (D) Serum pH
- (E) Rate of transfusion
Each of the following statements concerning the activated clotting time (ACT) is true EXCEPT:
- (A) The ACT is more sensitive than the activated partial thromboplastin time (APTT) to blood heparin concentration
- (B) The ACT is prolonged if the specimen is not warmed during the assay
- (C) The ACT should be greater than 300 sec before initiating cardiopulmonary bypass
- (D) Hypofibrinogenemia may prolong the ACT after cardiopulmonary bypass
- (E) Whole blood is used for measurement of the ACT
Percutanous cordotomy is being considered for a patient with severe pain that has persisted for three months after amputation of the arm for osteogenic sarcoma. Which of the following statements is true?
- (A) An effective cordotomy will produce motor block
- (B) A series of stellate ganglion blocks will provide permanent relief
- (C) Cordotomy must be performed with the patient awake
- (D) Cordotomy will effectively relieve phantom limb pain
- (E) Spinal opioids are an alternative treatment of this pain
Which of the following is the most sensitive indicator of impending renal failure following trauma?
- (A) Central venous pressure
- (B) Creatinine clearance
- (C) Fractional excretion of sodium
- (D) Hourly urine output
- (E) Urine osmolality
Which of the following postoperative treatments decreases the risk for deep venous thrombosis?
- (A) Blood transfusion
- (B) Epidural anesthesia
- (C) Etomidate
- (D) Ketorolac
- (E) Patient-controlled analgesia
Each of the following is an effect of intravascular radiographic contrast media EXCEPT
- (A) altered protein binding of anesthetic drugs
- (B) bronchospasm
- (C) increased systemic vascular resistance
- (D) pulmonary edema
- (E) seizures