Mosby's 2014 Nursing Drug Reference (203 page)

BOOK: Mosby's 2014 Nursing Drug Reference
5.44Mb size Format: txt, pdf, ePub

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

hepatitis B immune
globulin (HBIG) (Rx)

HepaGam B, Hyper HEP B S/D, Nabi-HB

Func. class.:
Immune globulin

ACTION:

Provides passive immunity to hepatitis B

USES:

Prevention of hepatitis B virus in exposed patients, including passive immunity in neonates born to HBsAg-positive mother, prevention of hepatitis B recurrence after liver transplant in HBsAg-positive patients

CONTRAINDICATIONS:

Hypersensitivity to immune globulins, coagulation disorders

Precautions:
Pregnancy (C), breastfeeding, children, geriatric patients, hemophilia, active infection, IgA deficiency

DOSAGE AND ROUTES
Calculator
Hepatitis B exposure in those at high risk

• Adult and child:
IM
0.06 ml/kg (usual 3-5 ml) within 7 days of exposure; repeat 28 days after exposure if patient wishes to not receive hepatitis B vaccine

Neonates born to hepatitis B surface-antigen–positive persons

• Neonate:
IM
0.5 ml within 12 hr of birth

Prevention of hepatitis B infection recurrence after liver transplant

• Adult:
IV
(HepaGam B only) 20,000 international units concurrent with grafting transplanted liver, then 20,000 international units/day on days 1-7, then 20,000 international units q2wk starting on day 14, then 20,000 international units/mo starting with mo 4

Available forms:
Inj 1-, 4-, 5-ml vials; neonatal syringe 0.5 ml; HepaGam B sol for inj 312 units/ml; Hyper HEP B S/D 217 units/ml

Administer:
IM route

• 
After rotating vial; do not shake

• 
Only with EPINEPHrine 1:1000 on unit to treat laryngospasm

• 
In deltoid for better absorption (adult)

IV route (HepaGam B only)

• 
Calculate volume needed for each 20,000 international-unit dose using measured potency of each lot; HBIG potency stamped on label

• 
Promptly use after vial entered; discard unused product

• 
Give at 2 ml/min through separate IV line, use inf pump, decrease to 1 ml/min if inf-related event occurs, patient becomes uncomfortable

• 
Do not use HyperHEP B BS/D or Nabi-HB IV

SIDE EFFECTS

CNS:
Headache, dizziness, fever

GI:
Nausea, vomiting

INTEG:
Soreness at inj site, urticaria, erythema, swelling

SYST:
Induration,
anaphylaxis, angioedema

INTERACTIONS

• 
Do not use within 3 mo of hepatitis B immune globulin, MMR, varicella, or rotavirus vaccines even after discontinuing product

NURSING CONSIDERATIONS
Assess:

• 
History of allergies, skin conditions (eczema, psoriasis, dermatitis), reactions to vaccinations

• 
Skin reactions: rash, induration, urticaria

 
Anaphylaxis:
inability to breathe, bronchospasm, hypotension, wheezing, diaphoresis, fever, flushing

• 
Can be used with hepatitis B vaccine in cases of direct contact

Perform/provide:

• 
Written record of immunization

Evaluate:

• 
Prevention of hepatitis B

Teach patient/family:

• 
That discomfort may occur at site

• 
To report any rash, wheezing, inability to breathe immediately

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

homatropine
ophthalmic

 

hydrALAZINE (Rx)

(hye-dral′a-zeen)

Apresoline

Func. class.:
Antihypertensive, direct-acting peripheral vasodilator

Chem. class.:
Phthalazine

Do not confuse:
hydrALAZINE
/hydrOXYzine
Apresoline
/allopurinol

ACTION:

Vasodilates arteriolar smooth muscle by direct relaxation; reduction in blood pressure with reflex increases in heart rate, stroke volume, cardiac output

USES:

Essential hypertension; severe essential hypertension

Unlabeled uses:
CHF

CONTRAINDICATIONS:

Hypersensitivity to hydrALAZINEs, mitral valvular rheumatic heart disease, CAD

Precautions:
Pregnancy (C), breastfeeding, geriatric patients, CVA, advanced renal disease, hepatic disease, SLE, dissecting aortic aneurysm

DOSAGE AND ROUTES
Calculator
Hypertension

• Adult:
PO
10 mg qid 2-4 days, then 25 mg for rest of 1st wk, then 50 mg qid individualized to desired response, max 300 mg/day

• Child:
PO
0.75-1 mg/kg/day in 2-4 divided doses, max 25 mg/dose, increase over 3-4 wk to max 7.5 mg/kg/day or 200 mg, whichever is less

Hypertensive crisis

• Adult:
IV BOL
10-20 mg q4-6hr, administer
PO
as soon as possible;
IM
10-50 mg q4-6hr

• Child:
IV BOL
0.1-0.6 mg/kg q4hr;
IM
0.1-0.6 mg/kg q4-6hr, max 1.7-3.5 mg/kg/day

CHF

• Adult:
PO
10-25 mg tid, max 75 mg tid

Available forms:
Inj 20 mg/ml; tabs 10, 25, 50, 100 mg

Administer:
PO route

• 
Give with meals (PO) to enhance absorption

IM route

• 
Do not admix, switch to PO as soon as possible

• 
No dilution needed, inject deeply in large muscle, aspirate

Direct IV route

• 
IV undiluted; give through
Y
-tube or 3-way stopcock, give each 10 mg over ≥1 min

• 
To recumbent patient, keep recumbent for 1 hr after administration

Y-site compatibilities:
Alemtuzumab, anidulafungin, argatroban, atenolol, bivalirudin, bleomycin, DACTINomycin, DAPTOmycin, dexrazoxone, diltiazem, DOCEtaxel, etoposide, fludarabine, gatifloxacin, gemcitabine, granisetron, HYDROmorphone, IDArubicin, irinotecan, leucovorin, linezolid, mechlorethamine, metroNIDAZOLE, milrinone, mitoXANtrone, octreotide, oxaliplatin, PACLitaxel, palonosetron, pancuronium, potassium chloride, tacrolimus, teniposide, thiotepa, tirofiban, vecuronium, vinorelbine, vitamin B/C, voriconazole

Solution compatibilities:
D
5
LR, D
5
W, D
10
W, D
10
LR, 0.45% NaCl, 0.9% NaCl, Ringer’s, LR

SIDE EFFECTS

CNS:
Headache, tremors, dizziness, anxiety
, peripheral neuritis, depression, fever, chills

CV:
Palpitations, reflex tachycardia, angina
,
shock,
rebound hypertension, orthostatic hypotension

GI:
Nausea, vomiting, anorexia, diarrhea
, constipation, paralytic ileus

GU:
Urinary retention, glomerulonephritis, hematuria

HEMA:
Leukopenia, agranulocytosis,
anemia,
thrombocytopenia

INTEG:
Rash, pruritus, urticaria

MISC:
Nasal congestion, muscle cramps,
lupuslike symptoms
, flushing, edema, dyspnea

PHARMACOKINETICS

Half-life 3-7 hr, metabolized by liver, 12%-14% excreted in urine, protein binding 89%

PO:
Onset 20-30 min, peak 1-2 hr, duration 2-4 hr

IM:
Onset 10-30 min, peak 1 hr, duration 2-6 hr

IV:
Onset 5-30 min, peak 10-80 min, duration 2-6 hr

INTERACTIONS

Increase:
severe hypotension—MAOIs

Increase:
tachycardia, angina—sympathomimetics (EPINEPHrine, norepinephrine)

Increase:
hypotension—other antihypertensives, alcohol, levodopa, thiazide diuretics

Increase:
effects of β-blockers

Decrease:
hydrALAZINE effects—NSAIDs, estrogens

Drug/Lab Test

Decrease:
Hgb, WBC, RBC, platelets, neutrophils

Positive:
ANA titer

NURSING CONSIDERATIONS
Assess:

• 
Cardiac status: B/P q5min × 2 hr, then q1hr × 2 hr, then q4hr; pulse, jugular venous distention q4hr

• 
Electrolytes, blood studies: potassium, sodium, chloride, carbon dioxide, CBC, serum glucose, LE prep, ANA titer before, during treatment; assess for fever, joint pain, rash, sore throat (lupuslike symptoms); notify prescriber

• 
Weight daily, I&O

• 
Edema in feet, legs daily, skin turgor, dryness of mucous membranes for hydration status

• 
Crackles, dyspnea, orthopnea

• 
IV site for extravasation, rate

• 
Mental status: affect, mood, behavior, anxiety; check for personality changes

Evaluate:

• 
Therapeutic response: decreased B/P

Teach patient/family:

• 
To take with food to increase bioavailability (PO)

• 
To avoid OTC preparations unless directed by prescriber

• 
To notify prescriber if chest pain, severe fatigue, fever, muscle or joint pain occurs

• 
To rise slowly to prevent orthostatic hypotension

• 
To notify prescriber if pregnancy is suspected

TREATMENT OF OVERDOSE:

Administer vasopressors, volume expanders for shock; if PO, lavage or give activated charcoal, digitalization

Other books

Finding You by Scott, Kaydee
Gone Away by Marjorie Moore
Perfect Murder, Perfect Town by Lawrence Schiller
Falling For My Best Friend's Brother by J.S. Cooper, Helen Cooper
becoming us by Anah Crow
The Bell Curve: Intelligence and Class Structure in American Life by Richard J. Herrnstein, Charles A. Murray
Theta by Lizzy Ford
Unsettled (Chosen #1) by Alisa Mullen
Fire in the Night by Linda Byler