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Portage NURS 251 - Test 3 QUESTIONS AND ANSWERS VERIFIED BY EXPERT 100% CORRECT | LATEST UPDATE 2025
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Portage NURS 251 - Test 3 QUESTIONS AND ANSWERS VERIFIED BY EXPERT 100% CORRECT | LATEST UPDATE 2025

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  • December 5, 2024
  • 13
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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Portage NURS 251 - Test 3 QUESTIONS AND ANSWERS
VERIFIED BY EXPERT 100% CORRECT | LATEST
UPDATE 2025

Two factors that determine a person's blood pressure - ANSWER Cardiac
Output and Systemic Vascular Resistance


Cardiac output - ANSWER amount of blood ejected from the heart's left
ventricle in one minute (heart rate x stroke volume)


SVR (systemic vascular resistance) - ANSWER amount of resistance to blood
flow


Contributing factors to a patient's blood pressure - ANSWER Cardiac Factors:
heart rate, contractibility
Circulating Volume: salt, alaosterone, hormones, and peripheral sympathetic
receptors


Hypertension Classification - ANSWER Normotensive = <120/80
Prehypertensive = 120-139/80-89
Hypertensive = >140/90
Stage 1 = 140-159/90-99
Stage 2 = >160/100


How to take blood pressure - ANSWER The instrument used is called a
sphygmomanometer. The health care provider uses a blood pressure cuff to cut

, off the blood flow from the brachial artery. As they release the pressure in the
cuff, using a stethoscope, they are listening for the first sound, called the Korotkoff
sound, meaning there is no longer enough pressure to keep all the blood from
flowing. This is the top number or systolic value of the patient's blood pressure.
The provider continues to let air out of the cuff and eventually the sounds
disappear, representing that the brachial artery is now completely open. This is
known as the diastolic value or bottom number in a patient's blood pressure.


Differentiate essential hypertension and secondary hypertension - ANSWER -
Essential hypertension (primary hypertension): cause of the increased blood
pressure is unknown.
-Secondary hypertension: elevated blood pressure is caused by another disease.


peripheral resistance - ANSWER resistance generated by the flow of blood
through the arteries. When this happens, the kidney releases an enzyme called
renin.


Renin enzyme - ANSWER leads to further vasoconstriction, water and sodium
retention, and an increase in blood pressure


What happens to the peripheral resistance during high blood pressure -
ANSWER there is an increased peripheral resistance which decreases blood
supply to the kidney.


Antihypertensive therapy - ANSWER -goal is to decrease morbidity and
mortality without decreasing quality of life

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