Anesthesia Hub -

10 Random Questions

Which of the following is a cardiorespiratory effect of epidural block to a T4 sensory level?

(A) Decreased expiratory reserve volume
(B) Decreased tidal volume
(C) Increased circulating catecholamine concentrations
(D) Increased heart rate
(E) Unchanged vital capacity

ADVANCED Respiratory & Critical Care Regional & Pain

Twenty minutes after thiopental induction for femoral herniorrhaphy, a 34-year-old woman is breathing spontaneously and receiving nitrous oxide-oxygen (2 liters each) and enflurane 3% by face mask. Pulse is 90 bpm, blood pressure is 80/60 mmHg, end-tidal enflurane concentration is 2%, and end-tidal carbon dioxide tension is 48 mmHg. Which of the following is most likely to occur on skin incision?

(A) Pupillary dilation
(B) Laryngeal stridor
(C) Gross muscular movement
(D) Increased blood pressure
(E) No response

BASIC General

Meperidine has a more rapid onset of action than morphine following intravenous injection because of its

(A) lesser ionization
(B) greater lipid solubility
(C) lesser protein binding
(D) smaller volume of distribution
(E) slower rate of hepatic clearance

BASIC Pharmacology & Pharmacokinetics

A 72-year-old man has had residual hemiparesis since having a cerebrovascular accident three years ago. Compared with the response of the unaffected limbs to nondepolarizing muscle relaxants, the hemiparetic limbs will show

(A) the same response
(B) greater depression of tetanus
(C) greater twitch depression
(D) less twitch depression
(E) less post-tetanic facilitation

Which of the following statements concerning the management of diabetes mellitus during pregnancy is true?

(A) Insulin requirements remain essentially unchanged during pregnancy
(B) Maternal blood glucose concentration of 200 mg/dL is optimal
(C) Maternal hyperglycemia may cause neonatal acidosis
(D) Neonatal hyperglycemia is common
(E) Infants delivered under general anesthesia have lower Apgar scores than those delivered under spinal anesthesia

ADVANCED OB

An apneic adult is receiving an oxygen flow of 4 L/min through a rigid bronchoscope. After five minutes of apnea, which of the following findings is most likely?

(A) A decrease in cardiac output
(B) A decrease in pulmonary vascular resistance
(C) A decrease in SpO2 from 99% to 89%
(D) An increase in PaCO2 of 18 mmHg
(E) Serum bicarbonate concentration of 30 mEq/L

BASIC Respiratory & Critical Care

Postoperatively, a patient is being mechanically ventilated by a constant-flow, pressure-cycled ventilator with the following initial settings: inspiratory/expiratory (I/E) ratio of 1:2, peak inspiratory pressure (PIP) of 25 cmH2O, and rate of 10/min. One hour later, the I/E ratio is 1:4. Which of the following would ensure that the minute ventilation is the same as that initially set?

(A) Inflate the endotracheal tube cuff to prevent leakage
(B) Double the respiratory rate
(C) Decrease the expiratory pause until the I/E ratio is 1.0
(D) Increase the PIP until the I/E ratio is 1:2
(E) Increase the PIP to 50 cmH20

BASIC Equipment & Physics Respiratory & Critical Care

In a patient with chronic congestive heart failure, the safest pharmacologic approach to brain swelling during a craniotomy is

(A) dexamethasone
(B) furosemide
(C) mannitol
(D) thiopental
(E) urea

At the end of an anesthetic in which a nondepolarizing muscle relaxant was administered, the least number of receptors are blocked

(A) after administration of neostigmine 5 mg and glycopyrrolate 1 mg
(B) if the tetanus is sustained at 30 Hz
(C) if the patient can sustain head lift for 5 sec
(D) when the ratio of twitch height T1:T4 is 0.8
(E) when tidal volume is normal

BASIC Pharmacology & Pharmacokinetics

Following axillary block for insertion of an arteriovenous fistula in the forearm, a patient has pain on surgical incision. Which of the following nerves should be blocked to relieve this pain?

(A) Axillary
(B) Median
(C) Musculocutaneous
(D) Radial
(E) Ulnar

ADVANCED Regional & Pain