10 Random Questions
An 8-kg, 1-year-old boy is scheduled for a bilateral inguinal hernia repair. If regional anesthesia is to be used for post-operative analgesia, which of the following statements is true?
- (A) Caudal administration of 0.25% bupivacaine will provide analgesia without evidence of motor block
- (B) Caudal administration of 0.125% bupivacaine is as effective as caudal administration of 0.25% bupivacaine
- (C) Caudal analgesia is more difficult to achieve in young children than in adults
- (D) The recommended volume of local anesthetic used for caudal analgesia in children is 3 ml per year of age
- (E) The volume of 0.25% bupivacaine required for bilateral ilioinguinal and iliohypogastric nerve blocks would be too large
Hypothermia to 29°C will decrease
- (A) hematocrit
- (B) plasma fibrinogen concentration
- (C) plasma pH
- (D) plasma protein concentration
- (E) platelet function
A tourniquet with dual bladders is being used for intravenous regional anesthesia of the upper extremity. At what point in the procedure should the distal tourniquet be inflated?
- (A) During injection of the local anesthetic
- (B) After the patient complains of tourniquet pain
- (C) Coincident with inflation of the proximal tourniquet
- (D) After the proximal tourniquet is deflated
- (E) Prior to exsanguination of the limb
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
Which of the following is the primary factor regulating normal coronary blood flow?
- (A) Aortic diastolic pressure
- (B) Coronary perfusion pressure
- (C) Heart rate
- (D) Myocardial oxygen consumption
- (E) Systolic wall tension
A 64-year-old man is scheduled to have an elective right colon resection under nitrous oxide, oxygen, enflurane anesthesia. Following a myocardial infarction two years ago, a programmable VVI pacemaker was inserted for complete heart block. A pre induction rhythm strip is shown. Based on this EKG finding, the most appropriate action is to
- (A) proceed with induction of anesthesia
- (B) convert the pacemaker to the fixed rate mode
- (C) reprogram the pacemaker to increase R-wave sensitivity
- (D) increase the pacemaker current outpu
- (E) insert a temporary atrioventricular sequential pacemaker
Characteristics of postdural puncture headache include
- (A) incidence unrelated to the timing of ambulation
- (B) increased severity with addition of vasoconstrictors to the anesthetic
- (C) less frequent occurrence if the needle bevel is perpendicular to the direction of dural fibers
- (D) more frequent occurrence in men
- (E) prevention by prophylactic epidural blood patch
A subarachnoid block to a sensory level of the second thoracic dermatome is associated with each of the following EXCEPT
- (A) total sympathetic block
- (B) decreased gastrointestinal smooth muscle tone
- (C) bradycardia
- (D) relaxation of gastrointestinal sphincters
- (E) decreased renal blood flow
In a patient with asthma, which of the following drugs used to treat supraventricular tachycardia is LEAST likely to induce bronchospasm?
- (A) Adenosine
- (B) Edrophonium
- (C) Esmolol
- (D) Propranolol
- (E) Verapamil
After two hours of anesthesia with halothane 1.2% and oxygen, nitrous oxide 75% is added to the inspired gas mixture. This addition would
- (A) increase the alveolar halothane and oxygen concentrations above inspired
- (B) increase the alveolar halothane concentration only
- (C) cause no change in alveolar gas concentrations compared with inspired
- (D) decrease alveolar oxygen concentration compared with inspired
- (E) decrease alveolar oxygen and halothane concentrations below inspired