Mosby's 2014 Nursing Drug Reference (408 page)

BOOK: Mosby's 2014 Nursing Drug Reference
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Canada only   Side effects:
italics
= common;
bold
= life-threatening   
Nurse Alert

tretinoin topical

 

triamcinolone (Rx)

(trye-am-sin′oh-lone)

Aristospan, Kenalog-10, Tac-3, Triesence

Func. class.:
Corticosteroid, synthetic

Chem. class.:
Glucocorticoid, intermediate acting

See ophthalmic in
Appendix B

ACTION:

Decreases inflammation by suppression of migration of polymorphonuclear leukocytes, fibroblasts; reversal of increased capillary permeability and lysosomal stabilization

USES:

Severe inflammation, immunosuppression, neoplasms, asthma (steroid dependent); collagen, respiratory, dermatologic/rheumatic disorders

CONTRAINDICATIONS:

Hypersensitivity, neonatal prematurity; epidural/intrathecal administration (Triamcinolone acetonide injections [Kenalog])

Precautions:
Pregnancy (C), breastfeeding, diabetes mellitus, glaucoma, osteoporosis, seizure disorders, ulcerative colitis, CHF, myasthenia gravis, renal disease, esophagitis, peptic ulcer, acne, cataracts, coagulopathy, head trauma, children <2 yr, psychosis, idiopathic thrombocytopenia, acute glomerulonephritis, amebiasis, fungal infections, nonasthmatic bronchial disease, AIDS, TB, adrenal insufficiency, acute bronchospasm

DOSAGE AND ROUTES
Calculator

• Adult:
IM
(acetonide, diacetate) 40 mg/wk; (diacetate, acetonide) 5-48 mg into neoplasms; (diacetate, acetonide) 2-40 mg into joint or soft tissue; (hexacetonide) 0.5 mg/in
2
of affected intralesional skin; (hexacetonide) 2-20 mg into joint or soft tissue

Severe/incapacitating allergic conditions such as asthma

• Adult:
IM
(Trivaris) 60 mg, titrate, usual range 40-80 mg

• Child:
IM
(Trivaris) 0.11-1.6 mg/kg/day (3.2-48 mg/m
2
/day) in 3-4 divided doses

Available forms:
Inj 25, 40 mg/ml diacetate; inj 3, 10, 40 mg/ml acetonide; inj 20, 5 mg/ml hexacetonide

Administer:
IM route

• 
After shaking susp (parenteral)

• 
Titrated dose; use lowest effective dose

• 
IM inj deep in large muscle mass; rotate sites; avoid deltoid; use 21G needle

• 
In 1 dose in
AM
to prevent adrenal suppression; avoid SUBCUT administration, may damage tissue

SIDE EFFECTS

CNS:
Depression, flushing, sweating
, headache, mood changes

CV:
Hypertension
,
circulatory collapse, thrombophlebitis, embolism,
tachycardia, edema

EENT:
Fungal infections, increased intraocular pressure, blurred vision

GI:
Diarrhea, nausea, abdominal distention
,
GI hemorrhage,
increased appetite
,
pancreatitis

HEMA:
Thrombocytopenia

INTEG:
Acne, poor wound healing, ecchymosis, petechiae

MS:
Fractures, osteoporosis, weakness

PHARMACOKINETICS

PO/IM:
Peak 1-2 hr, half-life 2-5 hr

INTERACTIONS

Increase:
side effects—alcohol, salicylates, indomethacin, amphotericin B, digoxin, cycloSPORINE, diuretics

Increase:
action of triamcinolone—salicylates, estrogens, indomethacin, oral contraceptives, ketoconazole, macrolide antiinfectives

Decrease:
action of triamcinolone—cholestyramine, colestipol, barbiturates, rifampin, ePHEDrine, phenytoin, theophylline

Decrease:
effects of anticoagulants, anticonvulsants, antidiabetics, ambenonium, neostigmine, isoniazid, toxoids, vaccines, anticholinesterases, salicylates, somatrem

Drug/Herb

• 
Hypokalemia: aloe, cascara, senna

Drug/Lab Test

Increase:
cholesterol, sodium, blood glucose, uric acid, calcium, urine glucose

Decrease:
Ca, K, T
4
, T
3
, thyroid
131
I uptake test, urine 17-OHCS, 17-KS, PBI

False negative:
skin allergy tests

NURSING CONSIDERATIONS
Assess:

• 
Potassium, blood glucose, urine glucose while patient receiving long-term therapy; hypokalemia and hyperglycemia

• 
Weight daily; notify prescriber if weekly gain of >5 lb

• 
B/P, pulse; notify prescriber if chest pain occurs

• 
I&O ratio; be alert for decreasing urinary output, increasing edema

• 
Plasma cortisol levels during long-term therapy (normal level: 138-635 nmol/L SI units when drawn at 8
AM
)

• 
Infection:
increased temp, WBC even after withdrawal of medication; product masks infection

• 
Potassium depletion: paresthesias, fatigue, nausea, vomiting, depression, polyuria, dysrhythmias, weakness

• 
Edema, hypertension, cardiac symptoms

• 
Mental status: affect, mood, behavioral changes, aggression

Perform/provide:

• 
Assistance with ambulation for patient with bone-tissue disease to prevent fractures

• 
Use of spacer device for geriatric patients with inhaler

Evaluate:

• 
Therapeutic response: ease of respirations, decreased inflammation

Teach patient/family:

• 
That emergency ID as corticosteroid user should be carried

• 
To notify prescriber if therapeutic response decreases; that dosage adjustment may be needed

• 
To avoid OTC products: salicylates, alcohol in cough products, cold preparations unless directed by prescriber

• 
About cushingoid symptoms

• 
About the symptoms of adrenal insufficiency: nausea, anorexia, fatigue, dizziness, dyspnea, weakness, joint pain

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

triamcinolone nasal
agent

 

triamcinolone
ophthalmic

 

triamcinolone (topical)

(try-am-sin′oh-lone)

Kenalog, Triacet, Triderm

Func. class.:
Corticosteroid, topical

ACTION:

Crosses cell membrane to attach to receptors to decrease inflammation, itching; inhibits multiple inflammatory cytokines

USES:

Inflammation/itching in corticosteroid-responsive dermatoses on the skin or inflammation in the mouth

CONTRAINDICATIONS:

Hypersensitivity, use on face, ear canal, infections

Precautions:
Pregnancy (C), breastfeeding, children

DOSAGE AND ROUTES
Calculator

• 
Apply to the affected areas bid-qid

Available forms:
Aerosol 0.2 mg; paste (dental) 0.1%; lotion, cream, ointment 0.025%; ointment 0.05%; lotion, cream, ointment 0.1%; ointment, cream 0.5%

Administer:
Topical route

• 
May be used with occlusive dressings

• 
Cream/Ointment/Lotion:
apply sparingly in a thin film and rub gently into the cleansed, slightly moist affected area

• 
Paste:
apply without rubbing, press into lesion until film develops

• 
Spray:
spray a small amount of preparation onto the lesion

SIDE EFFECTS

ENDO:
HPA axis suppression, Cushing syndrome

INTEG:
Burning, folliculitis, pruritus, dermatitis, maceration, hypopigmentation

META:
Hyperglycemia; glycosuria

PHARMACOKINETICS

Onset 8-12 hr

INTERACTIONS

Increase:
blood glucose

NURSING CONSIDERATIONS
Assess:

• 
Skin reactions: burning pruritus, folliculitis, mouth lesions

Evaluate:

• 
Decreasing itching, inflammation on the skin, decreasing mouth lesions

Teach patient/family:

• 
How to use each product

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

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