Anesthesia Hub -

10 Random Questions

The recommended agent for decontamination of anesthetic equipment splattered with blood containing HIV is

(A) household bleach
(B) hydrogen peroxide
(C) iodine solution
(D) isopropyl alcohol
(E) Lysol solution

The flow proportioning system on an anesthesia machine

(A) is regulated primarily by changes in oxygen input pressure
(B) limits nitrous oxide flow when oxygen pressure falls below a preset value
(C) maintains a minimum ratio of oxygen to nitrous oxide in fresh gas flow
(D) precludes the use of a closed system
(E) regulates flows of oxygen and nitrous oxide to maintain a fixed FlO:

BASIC Equipment & Physics

If a patient with chronic obstructive pulmonary disease is uncooperative during pulmonary function testing, the most accurate assessment of his disease will be derived from the

(A) forced expiratory volume in 1 second
(B) forced midexpiratory flow
(C) forced vital capacity
(D) maximal voluntary ventilation
(E) peak flow rate

ADVANCED Respiratory & Critical Care

A 66-year-old man with aortic regurgitation is brought to the operating room for aortic valve replacement after having received morphine, scopolamine premedication. PO2 is 40 mmHg in a sample of pulmonary artery blood drawn 10 minutes after the patient started breathing pure oxygen. This finding is compatible with

(A) wedging of the catheter tip
(B) left-to-right intracardiac shunt
(C) increased intrapulmonary shunting
(D) excessively depressed ventilation
(E) normal cardiac output

ADVANCED Cardiac

After administration of a single dose of vecuronium, function returns last to which of the following muscles?

(A) Adductor pollicis
(B) Diaphragm
(C) Laryngeal muscles
(D) Orbicularis oculi
(E) Rectus abdominis

BASIC Pharmacology & Pharmacokinetics

Alveolar stability at varying lung volumes is maintained by

(A) constant surface tension
(B) increased surface tension at low lung volume
(C) decreased surface tension at high lung volume
(D) decreased surface tension at low lung volume
(E) none of the above

BASIC Respiratory & Critical Care

Which of the following is the most likely beneficial effect of hyperbaric oxygen therapy in a 24-year-old scuba diver with decompression sickness?

(A) Decreased production of carbon dioxide
(B) Decreased size of gas bubbles
(C) Increased functional residual capacity
(D) Reversal of membrane pressure effects
(E) Shift of the oxyhemoglobin dissociation curve to the left

ADVANCED Respiratory & Critical Care

Which of the following fluids will restore circulating blood volume with the smallest infused volume?

(A) Albumin 25%
(B) Dextrose 5% in saline solution 0.45%
(C) Hydroxyethyl starch 6%
(D) Lactated Ringer's solution
(E) Type-specific whole blood

A meconium-stained, full-term infant has an initial Apgar score of 2. The oropharynx is suctioned and the infant is placed on a heated table. Which of the following is the most appropriate next step in management of the airway?

(A) If the oropharynx is clear, observation for respiratory effort
(B) Placement of an oxygen mask and application of positive pressure to clear the airway
(C) Nasotracheal suctioning
(D) Tracheal suctioning using the endotracheal tube
(E) Intubation and ventilation with 100% oxygen

ADVANCED Pediatric

A patient is anesthetized using an inhaled anesthetic with a blood/gas partition coefficient of 13.0. Recovery time depends primarily on

(A) oil/gas solubility of the drug
(B) cardiac output
(C) tidal volume
(D) duration of administration
(E) MAC of the drug

BASIC Pharmacology & Pharmacokinetics