Mosby's 2014 Nursing Drug Reference (77 page)

BOOK: Mosby's 2014 Nursing Drug Reference
2.31Mb size Format: txt, pdf, ePub
CALCIUM SALTS
calcium chloride (Rx)
calcium gluceptate (Rx)
calcium gluconate (Rx)
calcium lactate (Rx)

Func. class.:
Electrolyte replacement—calcium product

ACTION:

Caution needed for maintenance of nervous, muscular, skeletal function; enzyme reactions; normal cardiac contractility; coagulation of blood; affects secretory activity of endocrine, exocrine glands

USES:

Prevention and treatment of hypocalcemia, hypermagnesemia, hypoparathyroidism, neonatal tetany, cardiac toxicity caused by hyperkalemia, lead colic, hyperphosphatemia, vit D deficiency, osteoporosis prophylaxis, calcium antagonist toxicity (calcium channel blocker toxicity)

Unlabeled uses:
Electrolyte abnormalities in cardiac arrest, CPR

CONTRAINDICATIONS:

Hypercalcemia, digoxin toxicity, ventricular fibrillation, renal calculi

Precautions:
Pregnancy (C), breastfeeding, children, respiratory/renal disease, cor pulmonale, digitalized patient, respiratory failure, diarrhea, dehydration

DOSAGE AND ROUTES
Calculator
Calcium chloride

• Adult:
IV
500 mg-1 g q1-3days as indicated by serum calcium levels, give at <1 ml/min;
IV
200-800 mg injected in ventricle of heart

Calcium gluceptate

• Adult:
IV
5-20 ml;
IM
2-5 ml

Calcium gluconate

• Adult:
PO
0.5-2 g bid-qid;
IV
0.5-2 g at 0.5 ml/min (10% solution); max
IV
dose 3 g

• Child:
PO/IV
500 mg/kg/day in divided doses

Calcium lactate

• Adult:
PO
325 mg-1.3 g tid with meals

• Child:
PO
500 mg/kg/day in divided doses

Available forms:
Many; check product listings

Administer:
PO route (only acetate, carbonate, citrate, glubionate, lactate, phosphate)

• 
Give in 3-4 divided doses with or 1 hr after meals, follow with full glass of water; if using as phosphate binder in renal dialysis, do not follow with water, do not give oral medications within 1 hr of oral calcium;
chew tab:
chew thoroughly;
effervescent tab:
dissolve in full glass of water;
oral powder:
mix and give with food;
oral solution:
give before meals;
oral suspension:
shake well

IM route

• 
Glycerophosphate, lactate may be given IM

• 
Do not give chloride, gluconate IM

• 
Use only if IV is not feasible

• 
Inject into gluteal region (adult), lateral thigh (child)

• 
Aspirate before inj

• 
Do not give chloride subcut

IV route

• 
Undiluted or diluted with equal amounts of NS to a 5% sol for inj, give 0.5-1 ml/min

• 
Through small-bore needle into large vein; if extravasation occurs, necrosis will result (IV)

• 
Remain recumbent 1/2 hr after IV dose

Calcium chloride

Additive compatibilities:
Amikacin, amphotericin B, ampicillin, ascorbic acid, cefTRIAXone, cephapirin, chloramphenicol, DOPamine, hydrocortisone, isoproterenol, lidocaine, methicillin, norepinephrine, penicillin G potassium, penicillin G sodium, pentobarbital, PHENobarbital, verapamil, vit B/C

Syringe compatibilities:
Milrinone

Y-site compatibilities:
Inamrinone, DOBUTamine, EPINEPHrine, esmolol, morphine, PACLitaxel

Calcium gluceptate

Additive compatibilities:
Ascorbic acid inj, isoproterenol, lidocaine, norepinephrine, phytonadione, sodium bicarbonate

Calcium gluconate

Additive compatibilities:
Amikacin, aminophylline, ascorbic acid inj, cephapirin, chloramphenicol, cisatracurium, corticotropin, dimenhyDRIN
A
TE, DOXOrubicin liposome, erythromycin, furosemide, heparin, hydrocortisone, lidocaine, magnesium sulfate, methicillin, norepinephrine, penicillin G potassium, penicillin G sodium, PHENobarbital, potassium chloride, remifentanil, tobramycin, vancomycin, verapamil, vit B/C

Syringe compatibilities:
Aldesleukin, allopurinol, amifostine, aztreonam, ceFAZolin, cefepime, ciprofloxacin, cladribine, DOBUTamine, enalaprilat, EPINEPHrine, famotidine, filgrastim, granisetron, heparin/hydrocortisone, labetalol, melphalan, midazolam, netilmicin, piperacillin/tazobactam, potassium chloride, prochlorperazine, propofol, sargramostim, tacrolimus, teniposide, thiotepa, tolazoline, vinorelbine, vit B/C

SIDE EFFECTS

CV:
Shortened QT, heart block,
hypotension, bradycardia,
dysrhythmias; cardiac arrest (IV)

GI:
Vomiting, nausea, constipation

HYPERCALCEMIA:
Drowsiness, lethargy, muscle weakness, headache, constipation,
coma,
anorexia, nausea, vomiting, polyuria, thirst

INTEG:
Pain, burning at IV site, severe venous thrombosis, necrosis, extravasation

PHARMACOKINETICS

Crosses placenta, enters breast milk, excreted via urine and feces, half-life unknown, protein binding 40%-50%

PO:
Onset, peak, duration unknown, absorption from GI tract

IV:
Onset immediate, duration 1/2-2 hr

INTERACTIONS

Increase:
milk-alkali syndrome—antacids

Increase:
dysrhythmias—digoxin glycosides

Increase:
toxicity—verapamil

Increase:
hypercalcemia—thiazide diuretics

Decrease:
absorption of fluoroquinolones, tetracyclines, iron salts, phenytoin, thyroid hormones when calcium is taken PO

Decrease:
effects of atenolol, verapamil

Drug/Herb

Increase:
action/side effects—lily of the valley, pheasant’s eye, shark cartilage, squill

Drug/Lab Test

Increase:
calcium

NURSING CONSIDERATIONS
Assess:

• 
ECG for decreased QT and T wave inversion:
hypercalcemia, product should be reduced or discontinued, consider cardiac monitoring

• 
Calcium levels during treatment (8.5-11.5 g/dl is normal level); urine calcium if hypercaluria occurs

• 
Cardiac status: rate, rhythm, CVP (PWP, PAWP if being monitored directly)

• 
Hypocalcemia:
muscle twitching, paresthesia, dysrhythmias, laryngospasm

• 
Digitalized patients frequently; an increase in calcium increases digoxin toxicity risk

Perform/provide:

• 
Seizure precautions: padded side rails, decreased stimuli (noise, light); place airway suction equipment, padded mouth gag if calcium levels are low

• 
Store at room temp

Evaluate:

• 
Therapeutic response: decreased twitching, paresthesias, muscle spasms; absence of tremors, seizures, dysrhythmias, dyspnea, laryngospasm; negative Chvostek’s sign, negative Trousseau’s sign

Teach patient/family:

• 
To add foods high in vit D

• 
To add calcium-rich foods to diet: dairy products, shellfish, dark green leafy vegetables; to decrease oxalate- and zinc-rich foods: nuts, legumes, chocolate, spinach, soy

• 
To prevent injuries; to avoid immobilization

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

RARELY USED
calfactant (Rx)

(cal-fak′tant)

Infasurf

Func. class.:
Natural lung surfactant extract

USES:

Prevention and treatment (rescue) of respiratory distress syndrome in premature infants

DOSAGE AND ROUTES
Calculator

• Newborn:
INTRATRACHEAL INSTILL:
3 ml/kg of birth weight given as 2 doses of 1.5 ml/kg; repeat doses of 3 ml/kg of birth wt until up to 3 doses 12 hr apart have been given

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

candesartan (Rx)

(can-deh-sar′tan)

Atacand

Func. class.:
Antihypertensive

Chem. class.:
Angiotensin II receptor (type AT
1
) antagonist

ACTION:

Blocks the vasoconstrictor and aldosterone-secreting effects of angiotensin II; selectively blocks the binding of angiotensin II to the AT
1
receptor found in tissues

USES:

Hypertension, alone or in combination; CHF NYHA Class II-IV and ejection fraction ≤40%

CONTRAINDICATIONS:

Hypersensitivity

 

Black Box Warning:

Pregnancy (D) 2nd/3rd trimesters

Precautions:
Pregnancy (C) 1st trimester, breastfeeding, children, geriatric patients, hypersensitivity to ACE inhibitors, volume depletion, renal/hepatic impairment

DOSAGE AND ROUTES
Calculator
Hypertension

• Adult:
PO
single agent 16 mg/day initially in patients who are not volume depleted, range 8-32 mg/day; with diuretic or volume depletion 2-32 mg/day as single dose or divided bid

• Adolescent and child ≥6 yr and weight >50 kg:
PO
8-16 mg/day or divided bid, adjust to B/P; usual range 4-32 mg/day, max 32 mg/day

• Child ≥6 yr, weight <50 kg:
PO
4-8 mg/day or divided bid, adjust to B/P

• Child ≥1 yr and <6 yr:
PO
0.2 mg/kg/day in 1 dose or in 2 divided doses, adjust to B/P, max 0.4 mg/kg/day

Heart failure

• Adult:
PO
4 mg/day, may be doubled ≥2 wk, target dose 32 mg/day

Renal/hepatic disease

• Adult:
PO
≤8 mg/day for severe renal disease/moderate hepatic disease, adjust dose as needed

Available forms:
Tabs 4, 8, 16, 32 mg

Administer:

• 
Without regard to meals

• 
Oral liquid: shake well, do not freeze

SIDE EFFECTS

CNS:
Dizziness
, fatigue, headache

CV:
Chest pain, peripheral edema, hypotension

EENT:
Sinusitis, rhinitis, pharyngitis

GI:
Diarrhea
, nausea, abdominal pain, vomiting

GU:
Renal failure

MS:
Arthralgia, pain

RESP:
Cough, upper respiratory infection

SYST:
Angioedema

PHARMACOKINETICS

Peak 3-4 hr, protein binding 99%, half-life 9-12 hr, extensively metabolized, excreted in urine (33%) and feces (67%)

INTERACTIONS

Increase:
lithium level—lithium

Increase:
hyperkalemia—potassium, potassium-sparing diuretics

Increase:
hypotension—ACE inhibitors, β-blockers, calcium channel blockers, α-blockers

Decrease:
effect—salicylates, NSAIDs

Drug/Herb

Increase:
antihypertensive effect—hawthorn

Decrease:
antihypertensive effect—ephedra

NURSING CONSIDERATIONS
Assess:

 
Serious hypersensitivity reaction:
angioedema, anaphylaxis: facial swelling, difficulty breathing (rare)

 

Black Box Warning:

For pregnancy; this product can cause fetal death when given during pregnancy (D), 2nd/3rd trimester

• 
Response and adverse reactions, especially with renal disease

• 
B/P, pulse q4hr; note rate, rhythm, quality; electrolytes: potassium, sodium, calcium; baselines of renal/hepatic studies before therapy begins

• 
Heart failure:
jugular venous distention, weight, edema, dyspnea, crackles

Evaluate:

• 
Therapeutic response: decreased B/P

Teach patient/family:

• 
To comply with dosage schedule, even if feeling better

• 
To notify prescriber of mouth sores, fever, swelling of hands or feet, irregular heartbeat, chest pain

• 
That excessive perspiration, dehydration, vomiting, diarrhea may lead to fall in B/P; to consult prescriber if these occur

• 
To rise slowly to sitting or standing position to minimize orthostatic hypotension; that product may cause dizziness, fainting, lightheadedness

 

Black Box Warning:

To notify prescriber immediately if pregnant; not to use if breastfeeding

• 
To avoid all OTC medications unless approved by prescriber; to inform all health care providers of medication use

• 
To use proper technique for obtaining B/P; to understand acceptable parameters

Other books

Last Orders by Graham Swift
To Catch a Rake by Sally Orr
No Greater Love by William Kienzle
Seizure by Nick Oldham
Forbidden Bond by Lee, Jessica
River Secrets by Shannon Hale
Taste Test by Kelly Fiore
Still Human (Just Human) by Heavens, Kerry