Mosby's 2014 Nursing Drug Reference (288 page)

BOOK: Mosby's 2014 Nursing Drug Reference
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NURSING CONSIDERATIONS
Assess:

• 
Cardiac status: rate, rhythm, quality; postural hypotension, dysrhythmias

• 
Nutritional status: liver, yeast, legumes, organ meat, lean poultry; fat in diet

 
Hepatotoxicity:
clay-colored stools, itching, dark urine, jaundice; hepatic studies: AST, ALT, bilirubin, uric acid, alk phos; blood glucose before and during treatment

• 
CNS symptoms: headache, paresthesias, blurred vision

• 
Niacin deficiency:
nausea, vomiting, anemia, poor memory, confusion, dermatitis

• 
Hyperlipidemia:
for lipid, triglyceride, cholesterol level; obtain diet history

Evaluate:

• 
Therapeutic response: decreased lipids, warm extremities, absence of numbness in extremities

Teach patient/family:

• 
That flushing and increase in feelings of warmth will occur several hr after taking product (PO); after 2 wk of therapy, these side effects diminish

• 
To remain recumbent if postural hypotension occurs; to rise slowly to prevent orthostatic hypotension

• 
To abstain from alcohol if product is prescribed for hyperlipidemia

• 
To avoid sunlight if skin lesions are present

 
Hepatotoxicity:
to report clay-colored stools, anorexia, yellow eyes or skin, dark urine

Canada only   Side effects:
italics
= common;
bold
= life-threatening   
Nurse Alert

niCARdipine (Rx)

(nye-card′i-peen)

Cardene IV, Cardene SR

Func. class.:
Calcium channel blocker, antianginal, antihypertensive

Chem. class.:
Dihydropyridine

Do not confuse:
niCARdipine
/NIFEdipine
Cardene
/Cardizem
Cardene SR
/Cardizem SR

ACTION:

Inhibits calcium ion influx across cell membrane during cardiac depolarization; produces relaxation of coronary vascular smooth muscle, peripheral vascular smooth muscle; dilates coronary vascular arteries; increases myocardial oxygen delivery in patients with vasospastic angina

USES:

Chronic stable angina pectoris, hypertension

CONTRAINDICATIONS:

Sick sinus syndrome, 2nd-/3rd-degree heart block; hypersensitivity to this product or dihydropyridine; advanced aortic stenosis

Precautions:
Pregnancy (C), breastfeeding, children, geriatric patients, CHF, hypotension, hepatic injury, renal disease

DOSAGE AND ROUTES
Calculator
Hypertension

• Adult:
PO
20 mg tid initially; may increase after 3 days (range 20-40 mg tid) or 30 mg bid
SUS REL;
may increase to 60 mg bid or
IV
5 mg/hr; may increase by 2.5 mg/hr q15min; max 15 mg/hr

Angina

• Adult:
PO
20 mg tid; may be adjusted q3days; may use 20-40 mg tid

Renal dose

• Adult:
PO
adjust based on response

Hepatic dose

• Adult:
PO
20 mg bid

Available forms:
Caps 20, 30 mg; sus rel caps 30, 45, 60 mg; inj 2.5 mg/ml, premixed 20 mg/200 ml, 40 mg/200 ml

Administer:
PO route

• 
Do not break, crush, chew, or open sus rel cap

• 
Without regard to meals

IV route

• 
Dilute each 25 mg/240 ml of compatible sol (0.1 mg/ml), give slowly, titrate to patient response, change IV site q12hr

• 
Stable at room temp for 24 hr

Solution compatibilities:
D
5
W, D
5
/0.45% NaCl, D
5
/0.9% NaCl

Y-site compatibilities:
Alemtuzumab, amikacin, aminophylline, aztreonam, bivalirudin, butorphanol, calcium gluconate, CARBOplatin, caspofungin, ceFAZolin, ceftizoxime, chloramphenicol, cimetidine, CISplatin, clindamycin, cytarabine, DAPTOmycin, dexmedetomidine, diltiazem, DOBUTamine, DOCEtaxel, DOPamine, DOXOrubicin hydrochloride, enalaprilat, EPINEPHrine, epirubicin, erythromycin, esmolol, famotidine, fenoldopam, fentaNYL, gentamicin, hydrocortisone, HYDROmorphone, labetalol, lidocaine, linezolid, LORazepam, magnesium sulfate, mechlorethamine, methylPREDNISolone, metroNIDAZOLE, midazolam, milrinone, morphine, nafcillin, nesiritide, nitroglycerin, nitroprusside, norepinephrine, octreotide, oxaliplatin, oxytocin, palonosetron, penicillin G potassium, potassium chloride/phosphate, quinupristin/dalfopristin, ranitidine, rocuronium, tacrolimus, tirofiban, tobramycin, trimethoprim/sulfamethoxazole, vancomycin, vasopressin, vecuronium, vinCRIStine, voriconazole, zoledronic acid

SIDE EFFECTS

CNS:
Headache, dizziness
, anxiety, depression, confusion, paresthesia, somnolence,
flushing

CV:
Edema, bradycardia, hypotension, palpitations,
pulmonary edema,
chest pain, tachycardia, increased angina,
arrhythmias, CHF

GI:
Nausea, vomiting, gastric upset, constipation,
hepatitis,
abdominal cramps, dry mouth, sore throat

GU:
Nocturia, polyuria

INTEG:
Rash, inf site discomfort,
Stevens-Johnson syndrome

OTHER:
Blurred vision, flushing, sweating, SOB, impotence

PHARMACOKINETICS

Metabolized by liver, excreted in urine 60%, feces 35%

PO:
Onset 30 min, peak 1-2 hr, duration 8 hr

PO-SR:
Onset unknown, peak 2-6 hr, duration 10-12 hr, half-life 2-5 hr

INTERACTIONS

Increase:
effects of digoxin, neuromuscular blocking agents, theophylline, other antihypertensives, nitrates, alcohol, quiNIDine

Increase:
niCARdipine effects—cimetidine

Increase:
toxicity risk—cycloSPORINE, prazosin, carBAMazepine, quiNIDine, propranolol

Decrease:
antihypertensive effect—NSAIDs, rifampin

Drug/Herb

Increase:
effect—ginkgo, ginseng, hawthorn

Decrease:
effect—ephedra, melatonin, St. John’s wort, yohimbe

Drug/Food

Increase:
hypotensive effect—grapefruit juice

Increase:
LFTs

Drug/Lab Test

Decrease:
potassium (IV), phosphate, platelets

NURSING CONSIDERATIONS
Assess:

 
Cardiac status: B/P often, pulse, respiration, ECG during long-term treatment

• 
Anginal pain:
intensity, location, duration; alleviating, precipitating factors

• 
Potassium, renal, hepatic studies periodically

 
CHF:
weight gain, crackles, jugular venous distention, dyspnea, I&O

• 
Hypertension:
decreasing B/P; assess salt in diet, smoking, exercise, weight, monitor B/P often

Evaluate:

• 
Therapeutic response: decreased anginal pain, decreased B/P

Teach patient/family:

• 
To avoid hazardous activities until stabilized on product, dizziness is no longer a problem

• 
To limit caffeine consumption; to avoid alcohol products, to take without regard to food, avoid high-fat foods, to swallow sus rel product whole

• 
To avoid OTC products, grapefruit juice unless directed by prescriber

• 
Hypertension:
comply in all areas of medical regimen: diet, exercise, stress reduction, product therapy

 
To notify prescriber of irregular heartbeat, SOB, swelling of feet and hands, pronounced dizziness, constipation, nausea, hypotension, change in severity/pattern/incidence of angina

TREATMENT OF OVERDOSE:

Defibrillation, β-agonists, IV calcium, diuretics, atropine for AV block, vasopressor for hypotension

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