Mosby's 2014 Nursing Drug Reference (322 page)

BOOK: Mosby's 2014 Nursing Drug Reference
8.75Mb size Format: txt, pdf, ePub

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

pitavastatin (Rx)

(pit′a-va-stat′-in)

Livalo

Func. class.:
Antilipidemic

Chem. class.:
HMG-CoA reductase inhibitor

Do not confuse:
pitavastatin
/pravastatin

ACTION:

Inhibits HMG-CoA reductase enzyme, which reduces cholesterol synthesis; high doses lead to plaque regression

USES:

As an adjunct for primary hypercholesterolemia (types Ia, Ib), dysbetalipoproteinemia, elevated triglyceride levels, prevention of CV disease by reduction of heart risk in those with mildly elevated cholesterol

Unlabeled uses:
Atherosclerosis

CONTRAINDICATIONS:

Pregnancy (X), breastfeeding, hypersensitivity, active hepatic disease, cholestasis

Precautions:
Past hepatic disease, alcoholism, severe acute infections, trauma,
severe metabolic disorders, electrolyte imbalance, seizures, surgery, organ transplant, endocrine disease, females, hypotension, renal disease

DOSAGE AND ROUTES
Calculator

• Adult:
PO
2 mg/day, usual range 1-4, max 4 mg/day

Renal dose

• Adult:
PO
CCr 30-<60 ml/min, 1 mg daily, max 2 mg daily; CCr <30 ml/min on hemodialysis, 1 mg daily, max 2 mg daily; CCr <30 ml/min, not recommended

Atherosclerosis (unlabeled)

• Adult:
PO
4 mg/day

Available forms:
Tabs 1, 2, 4 mg

Administer:

• 
Total daily dose any time of day without regard to meals

• 
Storage in cool environment in tight container protected from light

SIDE EFFECTS

CNS:
Headache

GI:
Constipation, diarrhea

INTEG:
Rash, pruritus, alopecia

MS:
Arthralgia, myalgia,
rhabdomyolysis

RESP:
Pharyngitis

PHARMACOKINETICS

Peak 1 hr; metabolized in liver, excreted in urine, feces; half-life 12 hr; protein binding 99%; concentrations lower in healthy African Americans

INTERACTIONS

Increase:
risk for possible rhabdomyolysis—azole antifungals, cycloSPORINE, erythromycin, niacin, gemfibrozil, clofibrate

Increase:
levels of pitavastatin—erythromycin

Drug/Herb

Increase:
pitavastatin—red yeast rice

Drug/Lab Test

Increase:
bilirubin, alk phos, ALT, AST

Interference:
thyroid function tests

NURSING CONSIDERATIONS
Assess:

• 
Diet;
obtain diet history including fat, cholesterol in diet

• 
Cholesterol, triglyceride levels periodically during treatment; check lipid panel 6 wk after changing dose

• 
Hepatic studies at 12 wk after starting treatment, then q6mo; if AST >3× normal, reduce or discontinue; AST, ALT, LFTs may be increased

• 
Renal studies in patients with compromised renal system: BUN, I&O ratio, creatinine

 
Rhabdomyolysis:
muscle pain, tenderness; obtain CPK baseline; if markedly increased, product may need to be discontinued

Evaluate:

• 
Therapeutic response: decrease in cholesterol to desired level after 6 wk

Teach patient/family:

• 
That blood work will be necessary during treatment

• 
To report blurred vision, severe GI symptoms, headache, muscle pain, weakness, tenderness

• 
That previously prescribed regimen will continue: low-cholesterol diet, exercise program, smoking cessation

• Not to take product if pregnant (X) or if pregnancy is planned or suspected (notify prescriber); to avoid breastfeeding

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

plasma protein fraction (Rx)

Plasmanate

Func. class.:
Hematological agent

Chem. class.:
Plasma volume expander

ACTION:

Exerts similar oncotic pressure as human plasma, expands blood volume

USES:

Hypovolemic shock, hypoproteinemia, ARDS, preoperative cardiopulmonary bypass, acute hepatic failure, nephrotic syndrome, cardiogenic shock

CONTRAINDICATIONS:

Hypersensitivity to this product or albumin; CHF, severe anemia, renal insufficiency, hyponatremia, cardiopulmonary bypass

Precautions:
Pregnancy (C), decreased salt intake, decreased cardiac reserve, lack of albumin deficiency, hepatic disease

DOSAGE AND ROUTES
Calculator
Hypovolemia

• Adult:
IV INF
250-500 ml (12.5-25 g protein), max 10 ml/min

• Child:
IV INF
10-30 ml/kg at max 5-10 ml/min

Hypoproteinemia

• Adult:
IV INF
1000-1500 ml/day, max 8 ml/min

Available forms:
Inj 5%

Administer:
IV route

• 
IV access at distant site from infection or trauma; no dilution required; use inf pump, use large-gauge needle (≥20 G); discard unused portion; infuse slowly to prevent hypotension

• 
Within 4 hr of opening, discard partially used vials

• 
Do not use sol that has been frozen

• 
Adjust rate to changes in B/P

Additive compatibilities:
Carbohydrate and electrolyte sol, whole blood, packed RBCs, chloramphenicol, tetracycline

SIDE EFFECTS

CNS:
Fever, chills, headache, paresthesias, flushing

CV:
Fluid overload,
hypotension, erratic pulse

GI:
Nausea, vomiting, increased salivation

INTEG:
Rash, urticaria, cyanosis

RESP:
Altered respirations, dyspnea,
PE

PHARMACOKINETICS

Metabolized as a protein/energy source

INTERACTIONS
Drug/Lab Test

False increase:
alk phos

NURSING CONSIDERATIONS
Assess:

• 
Blood studies: Hct, Hgb, electrolytes, serum protein; if serum protein declines, dyspnea, hypoxemia can result

• 
B/P (decreased), pulse (erratic), respiration during inf

• 
I&O ratio; urinary output may decrease

• Allergy: fever, rash, itching, chills, flushing, urticaria, nausea, vomiting, hypotension requires discontinuation of inf; use new lot if therapy reinstituted; premedicate with diphenhydrAMINE

 
Increased CVP reading: distended neck veins indicate circulatory overload; SOB, anxiety, insomnia, expiratory crackles, frothy blood-tinged cough, cyanosis indicate pulmonary overload

Perform/provide:

• 
Adequate hydration before administration

• 
Storage at room temp, max 86° F

Evaluate:

• 
Therapeutic response: increased B/P, decreased edema, increased serum albumin

Other books

The Watchers by Ruth Ann Nordin
Shocked by Harvell, Casey
January Dawn by Cody Lennon
Forbidden Magic by Jennifer Lyon
Hellfire Part Two by Masters, Robyn
Doing Hard Time by Stuart Woods
Never Cry Wolf by Eden, Cynthia
Generation X by Douglas Coupland