HTN Flashcards
(141 cards)
HTN
- 2 elevated BPs in 2 or more visits
- less than 60, 140/90
- more than 60, 150/90
- over 18 w/ kidney or diabetes 140/90
- pt seated, back and feet supported, arm supported and at level of heart
- if untreated can damage organs
- dont blame white coat
- no symptoms
- silent killer
- start w/ 1 med, then add
HTN
EXAM
- heart and lung sounds
- orthoststics (old, meds)
- fundoscopic (eyes, cataracts)
- peripheral pulse, bruits, edema
- manual best, pump up 20-30mmhg over
HTN
Diag
- ECG
- Labs: CBC, BMP, LFTs, Lipids, TSH, UA (protein, occcult bacteremia) (looking for compromised renal and liver function)
- chest x-ray
HTN
JNC 8
- pre-HTN=lifestyle 1st (monthly, after 3 months start meds)
- 1st choice: Ace Inhibitors
- 2nd choice: Calcium Channel Blockers
- 3rd choice: Diuretics
- Black: CCB 1st
- Diabetics: Ace Inhibitor or ARB
- less strict over 60
- ED
- occasional tachy: BB or CCB
- anxiety: BB
- age and risk affect choices
HTN
Types
- Primary=most common, geri, family?,
- Secondary=uncommen, drugs, OCPs, obesity, diabetes, renal, meth, coke, stimulants, thyroid disease, adrenal cancer, sleep apnea, premie baby w/ line, caffeine, smoking
HTN
SE
- headache
- dizziness
- syncope
- hypotension
HTN
MONITOR
- BP
- BMP
Diuretics
- HTN
- electrolytes
- 3rd choice
- Thiazide
- Loop
- K-sparing
Thiazide
- Diuretic
- Hydrochlorothiazide, Chlorthalidone
- Excreted in breast milk (BUT MAY DECREASE MILK PRODUCTION
- good for blacks
- Preg B
- CHECK BMP prior to starting and after initiating therapy
- Eat Mg and K rich foods, decrease sugar
Thiazide
-Hydrochlorothiazide, Chlorthalidone
MOA
- Inhibits Na Reabsorption in distal renal tubule causing increased H2O as well as Na, K, and H
- decreased circulating volume=lower BP
Thiazide
-Hydrochlorothiazide, Chlorthalidone
PHARM
- Good PO absorption
- Diuresis in 2 hrs, Antihypertensive effects in 3-4 days
- 68% protein bound
- Not metabolized
- Excreted in urine as unchanged drug
Thiazide
-Hydrochlorothiazide, Chlorthalidone
CONTRA
- Anuria
- Sulfa Allergy
Thiazide
-Hydrochlorothiazide, Chlorthalidone
SE
- Hypokalemia
- Hypomagnesmia
- Pancreatitis
- Hyperglycemia
- Photoxicity (sunlight)
- CHECK BMP prior to starting and after initiating therapy
Thiazide
-Hydrochlorothiazide, Chlorthalidone
PTS
- Category B safe in pregnancy
- Excreted in breast milk (BUT MAY DECREASE MILK PRODUCTION)
- Safe in Pediatrics
Loop
- Furosemide (Lasix), Torsemide (Demedex)
- NOT great antihypertensive, NOT first line
- HIGHLY PROTEIN BOUND 99%
- main job is diuretic, not BP
- monitor BMP (especially K)
- mainly HF to reduce volume
Loop
-Furosemide (Lasix), Torsemide (Demedex)
MOA
-Inhibits Na and Cl Reabsorption in proximal and distal tubules and loop of henle
Loop
-Furosemide (Lasix), Torsemide (Demedex)
PHARM
- Good PO absorption
- HIGHLY PROTEIN BOUND
- Metabolized in liver
- Excreted in urine
Loop
-Furosemide (Lasix), Torsemide (Demedex)
SE
- Muscle Cramps (Mg)
- Glucose Intolerance
- Rash
- Gout
Loop
-Furosemide (Lasix), Torsemide (Demedex)
PTS
- Lasix: Category C in pregnancy
- Torsemide: Category B in pregnancy, not approved in pediatrics
- NEITHER to be used in lactation
K Sparing
- Diuretic
- Sprinolactone (Aldactone), Triamterene (Dyrenium)
- Directly BLOCKS Na reabsorption in distal renal tubule
- VERY PROTEIN BOUND
- CHECK BMP!! ESSENTIAL TO PERFORM
- Addisons Disease and renal insuff
- NO Ace Inhibitors!
K Sparing
-Sprinolactone (Aldactone), Triamterene (Dyrenium)
MOA
- Directly BLOCKS Na reabsorption in distal renal tubule
- Competitively binds to aldosterone-dependent Na/K exchange site in distal convoluted tubule causing an increase H2O excretion
K Sparing
-Sprinolactone (Aldactone), Triamterene (Dyrenium)
PHARM
- Well absorbed PO
- VERY PROTEIN BOUND
- Metabolized in liver and kidneys
- Excreted in both urine and stool
K Sparing
-Sprinolactone (Aldactone), Triamterene (Dyrenium)
SE
- Rash
- Photosensitivity
- Thrombocytopenia
- Stevens Johnson Syndrome
K Sparing
-Sprinolactone (Aldactone), Triamterene (Dyrenium)
CONTRA
- Anything that can cause hyperkalemia (Addison’s disease)
- Anuria
- Liver disease
- adrenal insuff