Anesthesia Hub -

10 Random Questions

Compared with intermittent positive pressure ventilation (IPPV), intermittent mandatory ventilation (IMV)

(A) better maintains cardiac output
(B) provides less than full mechanical ventilatory support
(C) requires a greater level of sedation
(D) requires a higher FlO2
(E) requires a lower inspiratory flow rate

A 70-year-old patient is shivering and has chest pain in the PACU following a cholecystectomy. Heart rate is 120 bpm, and blood pressure is 220/120 mmHg. SpO2 is 97% at an FiO2 of 0.4. An ECG shows ST-T wave changes, which are not affected by intravenous administration of nitroglycerin. Which of the following is the most appropriate next step?

(A) Administration of esmolol
(B) Administration of hydralazine
(C) Administration of nitroprusside
(D) Application of a warming blanket
(E) Increasing FiO2

ADVANCED General Cardiac

Intravenous administration of mannitol during a craniotomy

(A) decreases intracranial pressure relative to dosage
(B) hastens excretion of pancuronium
(C) induces metabolic alkalosis
(D) produces a sustained increase in intravascular volume
(E) requires an intact blood-brain barrier to decrease brain water

ADVANCED Pharmacology & Pharmacokinetics Neuro

A 30-year-old woman has difficulty talking 15 minutes after initiation of interscalene block for closed reduction of a dislocated shoulder. The most likely cause is

(A) cervical sympathetic block
(B) delayed systemic toxic reaction
(C) phrenic nerve paralysis
(D) pneumothorax
(E) recurrent laryngeal nerve block

ADVANCED Regional & Pain

Each of the following is a physiologic effect of intra-aortic balloon pump therapy EXCEPT

(A) decreased peak systolic pressure
(B) increased cardiac output
(C) increased coronary perfusion
(D) increased diastolic pressure
(E) increased total peripheral resistance

BASIC Respiratory & Critical Care Cardiac

A 120-kg 56-year-old man undergoing gastrectomy during anesthesia with fentanyl and isoflurane has a PetCO2 of 35 mmHg and a PaCO2 of 50 mmHg. His FEV,/FVC ratio is 80% of predicted. Heart rate is 120 bpm and arterial blood pressure is 80/40 mmHg. Which of the following is the most likely cause of the difference in PaCO2 and PetCO2?

(A) Aspiration pneumonitis
(B) Chronic obstructive pulmonary disease
(C) Decreased cardiac output
(D) Decreased VD/VT ratio
(E) Increased QS/QT ratio

ADVANCED Respiratory & Critical Care General

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

Which of the following is most indicative of reflex sympathetic dystrophy?

(A) Dry skin
(B) Dull pain that improves with movement
(C) Fasciculations
(D) Motor weakness
(E) Pallor and cyanosis

ADVANCED Regional & Pain

In a patient with peripheral vascular disease, the most likely result of lumbar sympathetic block is

(A) increased blood flow to skin and decreased blood flow to muscle
(B) increased blood flow to skin and unchanged blood flow to muscle
(C) increased blood flow to skin and muscle
(D) decreased blood flow to skin and muscle
(E) decreased blood flow to skin and unchanged blood flow to muscle

ADVANCED Regional & Pain

During induction of anesthesia in a 70-year-old man with aortic stenosis, the blood pressure decreases from 140/ 80 to 70/45 mmHg as the cardiac rhythm changes from normal sinus at 70 bpm to junctional at 120 bpm. The most appropriate initial therapy would be

(A) cardioversion
(B) esmolol
(C) fluid bolus
(D) phenylephrine
(E) verapamil

BASIC Pharmacology & Pharmacokinetics General Cardiac