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Online Community Of Clinical Excellence
Wed, 02/06/2008 - 21:51 — oxygen

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Question
Sun, 06/14/2009 - 14:32 — oxygen

Which of the following findings is most likely in an 85kg 30 y.o man who is breathing spontaneously through 6mm endotracheal tube: *
Decreased PETCO2

Decreased SpO2

Increased minute ventilation

Increased respiratory rate

Increased tidal volume

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Question
Fri, 06/12/2009 - 08:23 — oxygen

A 30 y.o man who is breathing spontaneously has a ventilatory pattern of sustained deep inspiration and occasional expiratory gasps during emergence from general anesthesia after posterior fossa craniotomy, which of the following is the most likely cause: *
Air in the cerebral ventricles

Expiratory obstruction from subglottic edema

Injury to the C3-5 nerve roots

Injury to the pons

Residual neuromuscular paralysis

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1 comment

Question
Tue, 06/09/2009 - 07:23 — oxygen

A 30kg patient with asthma is recieving general anesthesia and is being mechanically ventilated with a measured tidal volume of 300mL. Increasing the fresh gas flow from 3L/min to 9L/min without changing the ventilatory rate or I:E ratio will result in : *
decreased physiologic dead space

Increased delivered tidal volume

increased end-expired carbon dioxide

unchanged delivered minute volume

unchanged peak inspiratory pressure

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Question
Sat, 06/06/2009 - 23:08 — oxygen

Which of the following statements best describes testing for susceptibility to malignant hyperthermia (MH): *
live skeletal muscle cells are required for testing

the MH gene is located on the X chromosome

muscle biopsy is appropriate in children younger than 1 year

a normal serum creatine phosphokinase concentration eliminates the need for muscle biopsy

succinylcholine is used to stimulate muscle obtained on biopsy for MH

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Question
Sat, 06/06/2009 - 23:03 — oxygen

Delirium produced by high doses of atropine can be reversed by intravenous injection of: *
diphenhydramine

flumazenil

naloxone

neostigmine

physostigmine

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Question
Fri, 06/05/2009 - 10:58 — oxygen

In a 45 y.o patient with severe mitral regurgitation, which of the following is the most important hemodynamic condition to avoid during induction of anesthesia: *
Decreased heart rate to less than 60bpm

Increased heart rate to greater than 90bpm

Increased preload

Increased afterload

Enhanced myocardial contractility

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3 comments

Question
Thu, 06/04/2009 - 15:17 — oxygen

The metabolism of which of the following hypotensive agents is most likely to be affected in patients with severe renal disease: *
Esmolol

Hydralazine

Nitroglycerin

Nitroprusside

Trimethaphan

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Question
Wed, 06/03/2009 - 06:46 — oxygen

Which of the following inhalational anesthetics best relieves left ventricular outflow obstruction in a patient with hypertrophic obstructive cardiomyopathy(IHSS): *
Desflurane

Halothane

Isoflurane

Nitrous oxide

sevoflurane

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Question
Tue, 06/02/2009 - 05:54 — oxygen

The MAC of a volatile anesthetic agent is greatest when administered to which of the following groups of healthy patients: *
neonates

infants

adolescents

men 30 years of age

parturients

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