Anesthesia Hub -

10 Random Questions

Which of the following is the correct sequence of anatomic structures encountered when using a paramedian approach for lumbar spinal anesthesia?

(A) Ligamentum flavum — dura mater — arachnoid mater
(B) Interspinous ligament — ligamentum flavum — dura mater — arachnoid mater
(C) Posterior longitudinal ligament — ligamentum flavum — dura mater — arachnoid mater
(D) Anterior longitudinal ligament — ligamentum flavum — dura mater — arachnoid mater
(E) Ligamentum flavum — dura mater — pia mater — arachnoid mater

BASIC Regional & Pain

A 70-kg, 50-year-old man is scheduled for muscle flap closure of a decubitus ulcer over the sacrum. He has been quadriplegic at the level of C6-7 for six years. Which of the following is most likely to result from subarachnoid anesthesia with tetracaine 10 mg for this procedure?

(A) Atrioventricular block
(B) Decreased risk for autonomic dysreflexia
(C) Impaired expiratory muscle function
(D) Impaired inspiratory muscle function
(E) Inadequate block of spastic movements

ADVANCED General Regional & Pain

Three hours after total thyroidectomy, a 33-year-old man develops inspiratory stridor. The most likely cause is

(A) hematoma formation
(B) tracheomalacia
(C) tetany
(D) recurrent laryngeal nerve injury
(E) superior laryngeal nerve injury

Which of the following is a characteristic of the Bain breathing circuit?

(A) Condensation of moisture in inspired gases is facilitated by the circuit design
(B) Fresh gas flows coaxially around the exhalation limb
(C) Fresh gas flows need not exceed minute ventilation
(D) The circuit eliminates the possibility of rebreathing
(E) The circuit is functionally similar to the Jackson-Rees system

BASIC Equipment & Physics

Which of the following is the most likely finding in the affected extremity during the acute stage of reflex sympathetic dystrophy?

(A) Dermatomal distribution of pain
(B) Hypesthesia
(C) Increased growth of hair and nails
(D) Localized edema
(E) Radiographic evidence of osteoporosis

A 30-year-old woman underwent emergency cesarean delivery under general anesthesia at 36 weeks' gestation because of preeclampsia. Two hours after the operation, she is still intubated and apneic and cannot be aroused. Deep tendon reflexes are 1+. With mechanical ventilation at an FiO2 of 0.4, PaO2 is 130 mmHg, PaCO2 is 32 mmHg, pH is 7.45, and base excess is -0.6. The most likely cause is

(A) hypovolemic shock
(B) intracerebral hemorrhage
(C) nitroprusside toxicity
(D) overdose of magnesium sulfate
(E) pituitary necrosis

ADVANCED OB

When using a Venturi face mask with a reservoir bag

(A) a known constant FiO2 is delivered
(B) the reservoir bag ensures predictable FiO2 while conserving fresh gas flow
(C) low fresh gas flows will not decrease FiO2
(D) the system prevents hypocarbia during tachypnea
(E) the system increases anatomic dead space

BASIC Equipment & Physics

A patient has an anterior neck injury, hoarseness, labored respirations, subcutaneous emphysema, and laryngeal crepitus following a motor vehicle accident. Which of the following is the best method of securing the airway in this situation?

(A) Blind nasotracheal intubation
(B) Lightwand intubation
(C) Retrograde wire-guided intubation
(D) Tracheostomy
(E) Transtracheal jet ventilation

Pulmonary artery diastolic pressure is an unreliable indicator of left ventricular end-diastolic pressure in patients with

(A) acute cardiogenic pulmonary edema
(B) aortic stenosis
(C) acute mitral regurgitation
(D) myocardial ischemia
(E) severe emphysema

ADVANCED Equipment & Physics Cardiac

After termination of an inhalation anesthetic, patient-controlled analgesia will

(A) be effective without a loading dose of opioid if started in the immediate postanesthetic period
(B) be associated with greater analgesic requirements than conventional intramuscular opioid techniques
(C) cause addiction or dependence to opioids if continued for more than 72 hours
(D) produce less patient satisfaction than intermittent intravenous administration of opioids
(E) show a diurnal variation in analgesic requirement

ADVANCED Regional & Pain