Physiology of Arterial Pressure and Ventricular Function

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What is the correct sequence of steps to measure pulsus paradoxus using auscultatory method?

Inflate the cuff past the point of no sounds, slowly deflate until sounds are heard intermittently, then deflate until sounds are heard with every heartbeat (correct)

Deflate the cuff until sounds are heard with every heartbeat, then inflate until no sounds, then deflate until sounds are heard intermittently

Deflate the cuff until sounds are heard, then inflate until no sounds, then deflate until sounds are heard intermittently

Inflate the cuff, deflate until no sounds, then deflate until sounds are heard with every heartbeat

What is the significance of a difference >10 mmHg in pulsus paradoxus measurement?

It is a random pattern of irregular beats

It is considered a significant indicator of pulsus paradoxus (correct)

It is a sign of heart block

It indicates a normal heart rhythm

What is the reason for taking the pulse for a full minute?

To measure the pulsus paradoxus

To assess the blood pressure

To identify irregularities in the heart rhythm (correct)

To assess the heart rate

What is the term for a repeating pattern of irregular beats?

Regular irregularity Signup and view all the answers

What may be recommended by the nurse or RCP if irregularities are suspected?

Ordering an EKG Signup and view all the answers

What is the term for the interruption in the transmission of electrical impulses through the heart's conducting system?

Heart block Signup and view all the answers

What is the correct definition of pulsus paradoxus?

A difference in blood pressure between inspiration and expiration Signup and view all the answers

What is the significance of skipped beats or extra beats in the heart rhythm?

They are a sign of irregularities in the heart rhythm Signup and view all the answers

What is the purpose of deflating the cuff until sounds are heard intermittently during pulsus paradoxus measurement?

To measure the highest systemic blood pressure during expiration Signup and view all the answers

What is the effect of increased venous return on the right ventricle during inspiration?

It distends Signup and view all the answers

What is the effect of increased blood volume pooling in the expanded lungs on the left atrium and ventricle?

It decreases blood return Signup and view all the answers

What is the result of the interventricular septum bulging into the left ventricle during inspiration?

It decreases left ventricular stroke volume Signup and view all the answers

What is the minimum inspiratory systolic BP drop required for pulsus paradoxus to occur in respiratory conditions?

> 10 mmHg Signup and view all the answers

What is the method to quantify pulsus paradoxus?

Blood pressure measurement Signup and view all the answers

What is the condition in which the drop in pulse rate and strength can be grossly assessed by radial artery palpation?

Severe asthma Signup and view all the answers

What is the name of the doctor who discovered the correlation between radial artery palpation and pulsus paradoxus?

Dr. Kussmaul Signup and view all the answers

What is the unit of measurement for the amplitude of pulsus paradoxus in the figure?

mmHg Signup and view all the answers