Anesthesia Hub -

10 Random Questions

Neostigmine administered intravenously without atropine can produce each of the following EXCEPT

(A) arousal
(B) bradycardia
(C) bronchoconstriction
(D) increased gastric motility
(E) increased urinary bladder tone

The supine hypotensive syndrome of pregnancy

(A) begins at 32 weeks' gestation
(B) causes fetal distress by aortocaval compression
(C) is corrected by Trendelenburg's position
(D) is less likely following subarachnoid block than epidural block
(E) occurs in 90% of supine women at 38 to 40 weeks' gestation

ADVANCED OB

A child has tachypnea immediately after reintubation for intractable laryngospasm. Oxygen saturation is 78% at an FiO2 of 1.0. A radiograph of the chest taken 15 minutes later is most likely to show

(A) bilateral pleural effusions
(B) diffuse homogenous pulmonary infiltrates
(C) patchy central infiltrates of the right upper lobe
(D) pneumothorax
(E) segmental atelectasis at both lung bases

ADVANCED Respiratory & Critical Care Pediatric

During induction of anesthesia for cesarean delivery, pancuronium is inadvertently substituted for succinylcholine. The neonate shows no clinical signs of muscle relaxation because pancuronium is

(A) highly ionized
(B) highly protein bound
(C) a large molecule
(D) lipid soluble
(E) unaffected by "ion trapping"

BASIC Pharmacology & Pharmacokinetics

With respect to mechanical ventilation, which of the following statements concerning the portion of tidal volume known as compression volume is true?

(A) It is calculated by dividing the volume of gas delivered to the patient by the peak pressure
(B) It does not contribute to the volume of gas entering the patient
(C) It is not included in the volume measured by a spirometer on the inspiratory limb
(D) It decreases with the addition of a humidifier to the breathing circuit
(E) It decreases with the addition of one-way valves at the Y connector of the breathing circuit

BASIC Equipment & Physics

Which of the following increases the cephalad spread of hyperbaric intrathecal local anesthetics?

(A) Cephalad-directed needle bevel
(B) Coughing
(C) Lithotomy position
(D) Obesity
(E) Rapid injection

Four and one-half hours after initiation of general anesthesia for a radical hysterectomy, a 65-kg patient has a heart rate of 90 bpm, blood pressure of 100/70 mmHg, pulmonary artery occlusion pressure of 9 mmHg, and cardiac output of 2.8 L/min. Urine output has been 20 ml over the last two hours. The most appropriate next step is

(A) administration of furosemide
(B) administration of indigo carmine
(C) administration of mannitol
(D) bolus infusion of normal saline solution
(E) infusion of dopamine in renal dose

Intraoperative heat loss in an unclothed, undraped patient is caused primarily by

(A) conduction to colder objects
(B) convective heat loss
(C) insensible perspiration
(D) radiant heat loss to the environment
(E) respiratory tract water loss

BASIC General

Which of the following differentiates midazolam from diazepam administered intravenously in equipotent doses?

(A) Greater hemodynamic stability
(B) Lack of active metabolites
(C) Less respiratory depression
(D) Longer duration of action
(E) More rapid onset

A patient with low cardiac output following coronary artery bypass grafting is transferred to the intensive care unit where a chest roentgenogram confirms proper placement of the pulmonary artery catheter. Serial pulmonary artery occlusion pressures are then measured. Immediately following inflation of the balloon with 1.5 ml of air in the wedged position, brisk bleeding is noted from the endotracheal tube. The most appropriate immediate management is to

(A) withdraw the pulmonary artery catheter
(B) perform endobronchial intubation
(C) apply 15 to 20 cmH20 positive end-expiratory pressure to the airway
(D) administer fresh frozen plasma rapidly
(E) decrease blood pressure rapidly with nitroprusside