Mosby's 2014 Nursing Drug Reference (179 page)

BOOK: Mosby's 2014 Nursing Drug Reference
5.63Mb size Format: txt, pdf, ePub
fludrocortisone (Rx)

(floo-droe-kor′ti-sone)

Func. class.:
Corticosteroid, synthetic

Chem. class.:
Mineralocorticoid

ACTION:

Promotes increased reabsorption of sodium and loss of potassium, water, hydrogen from distal renal tubules

USES:

Adrenal insufficiency, salt-losing adrenogenital syndrome, Addison’s disease

Unlabeled uses:
Renal tubular acidosis (type IV), idiopathic orthostatic hypotension

CONTRAINDICATIONS:

Children <2 yr, hypersensitivity, acute glomerulonephritis, amebiasis, psychoses, Cushing’s syndrome, fungal infections

Precautions:
Pregnancy (C), breastfeeding, children >2 yr, osteoporosis, CHF, hypertension, diabetes

DOSAGE AND ROUTES
Calculator

• Adult:
PO
100-200 mcg/day

• Child:
PO
50-100 mcg/day

Idiopathic hypotension (unlabeled)

• Adult:
PO
50-200 mcg/day

Available forms:
Tabs 100 mcg (0.1 mg)

SIDE EFFECTS

CNS:
Flushing, sweating
, headache, paralysis, dizziness,
seizures

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

ENDO:
Weight gain, adrenal suppression, hyperglycemia

META:
Hypokalemia

MISC:
Hypersensitivity, cataracts, GI ulcers,
anaphylaxis

MS:
Fractures, osteoporosis, weakness

PHARMACOKINETICS

Peak 1.5 hr, half-life 18-36 hr, metabolized by liver, excreted in urine

INTERACTIONS

Increase:
B/P—sodium-containing food or medication

Decrease:
fludrocortisone action—barbiturates, rifampin, phenytoin

Decrease:
potassium levels—thiazides, potassium-wasting products, loop diuretics, amphotericin B, piperacillin, mezlocillin

Drug/Herb

Increase:
hypokalemia—aloe, buckthorn, cascara sagrada, Chinese rhubarb, senna

Increase:
corticosteroid effect—aloe, licorice, perilla

Drug/Lab Test

Increase:
potassium, sodium

Decrease:
Hct

NURSING CONSIDERATIONS
Assess:

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

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

• 
B/P q4hr, pulse; notify prescriber if chest pain occurs

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

• 
Electrolytes: sodium, potassium, chloride, hypokalemia is common

Administer:

• 
Titrated dose; use lowest effective dose

• 
With food or milk to decrease GI symptoms

Perform/provide:

• 
Assistance with ambulation in patient with bone tissue disease to prevent fractures

Evaluate:

• 
Therapeutic response: correction of adrenal insufficiency

Teach patient/family:

• 
That emergency ID as steroid user should be carried

• 
Not to discontinue this medication abruptly

• 
To notify health care provider of muscle cramps, weight gain, edema, nausea, infection, trauma, stress

• 
Not to breastfeed while taking this medication

• 
Avoid exposure to disease, trauma

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

flumazenil (Rx)

(flu-maz′e-nill)

Anexate
, Romazicon

Func. class.:
Antidote: benzodiazepine receptor antagonist

Chem. class.:
Imidazobenzodiazepine derivative

ACTION:

Antagonizes actions of benzodiazepines on CNS, competitively inhibits activity at benzodiazepine recognition site on GABA/benzodiazepine receptor complex

USES:

Reversal of sedative effects of benzodiazepines

CONTRAINDICATIONS:

Hypersensitivity to this product or benzodiazepines, serious cyclic antidepressant overdose, patients given benzodiazepine for control of life-threatening conditions

Precautions:
Pregnancy (C), breastfeeding, children, geriatric patients, status epilepticus, head injury, labor/delivery, renal/hepatic disease, hypoventilation, panic disorder, drug and alcohol dependency, ambulatory patients

 

Black Box Warning:

Benzodiazepine dependence, seizures

DOSAGE AND ROUTES
Calculator
Reversal of conscious sedation or general anesthesia

• Adult:
IV
0.2 mg given over 15 sec; wait 45 sec then give 0.2 mg if consciousness does not occur; may be repeated at 60-sec intervals prn (max 3 mg/hr) or 1 mg/5 min

• Child:
IV
10 mcg (0.01 mg)/kg; cumulative dose of 1 mg or less

Management of suspected benzodiazepine overdose

• Adult:
IV
0.2 mg given over 30 sec; wait 30 sec then give 0.3 mg over 30 sec if consciousness does not occur; further doses of 0.5 mg can be given over 30 sec at intervals of 1 min up to cumulative dose of 3 mg

• Child:
IV
10 mcg (0.01 mg/kg), cumulative dose of <1 mg

Available forms:
Inj 0.1 mg/ml

Administer:

• 
Check airway and IV access before administration

• 
Use large vein

Direct IV route

• 
Give undiluted or diluted with 0.9% NaCl, D
5
W, LR; give over 15-30 sec into running IV

• 
Stable for 24 hr if drawn into a syringe or mixed with other solutions

SIDE EFFECTS

CNS:
Dizziness, agitation, emotional lability, confusion,
seizures,
somnolence, panic attacks

CV:
Hypertension, palpitations, cutaneous vasodilation,
dysrhythmias,
bradycardia, tachycardia, chest pain

EENT:
Abnormal vision, blurred vision, tinnitus

GI:
Nausea, vomiting, hiccups

SYST:
Headache, inj site pain, increased sweating, fatigue, rigors

PHARMACOKINETICS

Terminal half-life 41-79 min, metabolized in liver, onset 1-2 min

INTERACTIONS

• 
Toxicity: mixed product overdosage

• 
Antagonize action of benzodiazepines, zaleplon, zolpidem

NURSING CONSIDERATIONS
Assess:

• 
Cardiac status using continuous monitoring

 

Black Box Warning:

For seizures; protect patient from injury; most likely among those who are withdrawing from benzodiazepines; flumazenil can precipitate benzodiazepine withdrawal and onset of seizures, seizures are increased in head trauma

• 
GI symptoms: nausea, vomiting; place patient in side-lying position to prevent aspiration

• 
Allergic reactions:
flushing, rash, urticaria, pruritus

 

Black Box Warning:

Seizures/benzodiazepine dependence:
do not use in those who have used these products for IIP or status epilepticus; use in intensive care setting cautiously, there may be unrecognized benzodiazepine dependence

Evaluate:

• 
Therapeutic response: decreased sedation, respiratory depression, toxicity

Teach patient/family:

• 
That amnesia may continue

• 
Not to engage in hazardous activities for 18-24 hr after discharge

• 
Not to take any alcohol or nonprescription products for 18-24 hr

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

flunisolide nasal agent

Other books

Doyle After Death by John Shirley
Dead Boogie by Victoria Houston
Fallout by James W. Huston
Sidney Sheldon by Are You Afraid of the Dark?
Dust of Dreams by Erikson, Steven
Dare by Hannah Jayne