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HTN
HTN Med/Surg I
| Question | Answer |
|---|---|
| Normal BP | < 120/ <80 mmHg |
| Pre-HTN | 120-139/80-89 mmHg |
| stage 1 HTN | 140-159/90-99 mmHg |
| stage 2 HTN | >160/ >100 mmHg |
| HTN | >135/ >85 mmHg |
| Orthostatic HTN | a drop in BP changing from lying to sitting |
| HTN complications | atherosclerosis, cardiac, renal, and peripheral vascular disease |
| Cardiac output | the volume of blood flowing through either the systemic or the pulmonary circut per minute nad exerts pressure on artery walls |
| CO is affected by | Na intake, venous constricion, stress |
| Preload | How much does right ventricle have to strech to accomodate incoming blood? |
| Afterload | How hard does left ventricle have to pump to expel blood? |
| HTN symptoms | may be asymptomatic, retinal changed, papilledema, target organ damage (heart, kidney, cerebrovascular), pain, dizziness, tinitus, early AM headache, blurred vision, nocturia |
| Target organ damage - Heart | angina, MI, heart failure |
| Target organ damage - kidney | renal failure |
| Target organ damage - cerebrovascular | TIA, stroke |
| Target organ damage - eye | retinopathy |
| HTN lab studies | Na, K, creat, fasting glucose, cholesterol, LDL,HDL, EKG |
| HTN assessment | family hx, occupation, diet, exercise |
| HTN treatment recommendations | weight loss, reduce ETOH and Na intake, regular exercise, stop smoking, reduce fat and cholesterol |
| HTN Meds | diuretics, andrenergic inhibitors, B-blockers, A-blockers, vasodilators, ACE-inhibitors, angiotensin II receptor blockers, CCBs, peripheral vasodilators |
| Collaborative problems | Left ventricular hypertorphy, MI, heart failure, TIAs, stroke, renal failure |
| HTN crisis | BP must be lowered immediately (w/in) to halt or prevent organ damage |