Hypertension correct answersoccurs when systolic blood pressure is at or greater than 130 mm
Hg or diastolic blood pressure is at or greater than 80 mm Hg for two or more assessments of
blood pressure
Essential (primary) hypertension correct answersno known cause
Secondary hypertension correct answerscaused by disease states
Arterial baroreceptors correct answerscontrol blood pressure by altering the heart rate
Regulation of body-fluid volume correct answersproperly functioning kidneys retain fluid when
a patient is hypotensive and excrete fluid when a patient is hypertensive
Renin-angiotensin-aldosterone system correct answersrenin is converted into angiotensin II,
which causes vasoconstriction and controls aldosterone release, causing the kidneys to reabsorb
sodium and inhibit fluid loss.
Vascular autoregulation correct answersmaintains consistent levels of tissue perfusion
Clients who have hypertension can experience few or no manifestations. Monitor for the
following: correct answers-headaches, particularly in the morning
-facial flushing
-dizziness
-fainting
-retinal changes, visual disturbances
-nocturia
Levels of hypertension correct answersElevated: systolic 120 to 129 mm Hg and diastolic less
than 80 mm Hg
Stage I hypertension: systolic 130 to 139 mm Hg and diastolic less than 80 to 89 mm Hg
Stage II hypertension: systolic greater than or equal to 140 mm Hg and diastolic greater than or
equal to 90 mm Hg
No laboratory tests exist to diagnose hypertension. However, several laboratory tests can identify
the causes of secondary hypertension and target organ damage. correct answersBUN, creatinine
elevation is indicative of kidney disease
Elevated blood corticoids can indicate Cushing's disease
Blood glucose and cholesterol studies can identify contributing factors related to blood vessel
changes
ECG evaluates cardiac function. Tall R-waves are often seen with left-ventricular hypertrophy
Chest x-ray can show cardiomegaly