NUSA 207 Exam 4 With Complete Solution

NUSA 207 Exam 4 With
Complete Solution

Alpha 1 causes - ANSWER - vasoconstriction

- increased peripheral resistance

- increased blood pressure

- mydriasis (pupil dilation)

- increase closure of bladder internal sphincter




Beta 1 causes - ANSWER - tachycardia

- increased lipolysis

- increased myocardial contractility

- increased release of renin (leading to increased BP)




Beta 2 causes - ANSWER - vasodilation

- bronchodilation

- increased release of glucagon

- relaxation of uterine smooth muscle

,Beta 1 blockers affect - ANSWER heart




Beta 2 blockers affect - ANSWER lungs




Primary BP factors - ANSWER - blood volume

- peripheral resistance

- cardiac output




Blood volume - ANSWER fluid loss

- dehydration

fluid retention

- aldosterone

- ADH




Peripheral resistance (diameter of arterioles) - ANSWER - sympathetic
nervous system activity

- renin/angiotensin II

- increase in blood viscosity




Cardiac output - ANSWER stroke volume

, - preload

- contractility

- afterload

heart rate

- sympathetic nervous system

- parasympathetic nervous system

- epinephrine




Primary hypertension - ANSWER - no identifiable cause

- essential hypertension




Secondary hypertension - ANSWER - specific cause of the HTN can be
identified

- Cushing's syndrome, hyperthyroidism, renal disease




Chronic hypertension - ANSWER - causes the heart to work harder to pump
blood to organs and tissues

- can lead to kidney damage, stroke, heart attack




Angiotensin-converting enzyme (ACE) inhibitor - ANSWER captopril