Mosby's 2014 Nursing Drug Reference (320 page)

BOOK: Mosby's 2014 Nursing Drug Reference
6.84Mb size Format: txt, pdf, ePub
phosphate/biphosphate (
OTC
)

Fleet Enema, Phospho-Soda

Func. class.:
Laxative, saline

ACTION:

Increases water absorption in the small intestine by osmotic action; laxative effect occurs by increased peristalsis and water retention

USES:

Constipation, bowel or rectal preparation for surgery, exam

CONTRAINDICATIONS:

Hypersensitivity, rectal fissures, abdominal pain, nausea, vomiting, appendicitis, acute surgical abdomen, ulcerated hemorrhoids, sodium-restricted diet, renal failure, hyperphosphatemia, hypocalcemia, hypokalemia, hypernatremia, Addison’s disease, CHF, ascites, bowel perforation, megacolon, imperforate anus

 

Black Box Warning:

GI obstruction, renal failure

Precautions:
Pregnancy (C)

 

Black Box Warning:

Colitis, geriatric hypovolemia, renal disease

DOSAGE AND ROUTES
Calculator

• Adult:
PO
20-30 ml (Phospho-Soda)

• Child:
PO
5-15 ml (Phospho-Soda)

• Adult and child
>
12 yr:
RECT
1 enema (118 ml)

• Child 2-12 yr:
RECT
1/2 enema (59 ml)

Available forms:
Enema 7 g phosphate/19 g biphosphate/118 ml; oral sol 18 g phosphate/48 g biphosphate/100 ml

Administer:

• 
Alone for better absorption; do not take within 1-2 hr of other products

SIDE EFFECTS

CV:
Dysrhythmias, cardiac arrest,
hypotension,
widening QRS complex

GI:
Nausea, cramps
, diarrhea

META:
Electrolyte, fluid imbalances

PHARMACOKINETICS

Onset 30 min-3 hr, excreted in feces

NURSING CONSIDERATIONS
Assess:

• 
Stools:
color, amount, consistency; bowel pattern, bowel sounds, flatulence, distention, fever, dietary patterns, exercise; cramping, rectal bleeding, nausea, vomiting; if these occur, product should be discontinued

• 
Blood, urine electrolytes if product used often

Evaluate:

• 
Therapeutic response: decrease in constipation

Teach patient/family:

• 
Not to use laxatives for long-term therapy because bowel tone will be lost

• 
That normal bowel movements do not always occur daily

• 
Not to use in presence of abdominal pain, nausea, vomiting

• 
To notify prescriber if constipation unrelieved or if symptoms of electrolyte imbalance occur: muscle cramps, pain, weakness, dizziness, excessive thirst

• 
To maintain fluid consumption

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

physostigmine
ophthalmic

 

phytonadione (Rx)

(fye-toe-na-dye′one)

Mephyton, Vit K

Func. class.:
Vit K
1
, fat-soluble vitamin

ACTION:

Needed for adequate blood clotting (factors II, VII, IX, X)

USES:

Vit K malabsorption, hypoprothrombinemia, prevention of hypoprothrombinemia caused by oral anticoagulants, prevention of hemorrhagic disease of the newborn

CONTRAINDICATIONS:

Hypersensitivity, severe hepatic disease, last few weeks of pregnancy

Precautions:
Pregnancy (C), neonates, hepatic disease

 

Black Box Warning:

IV use

DOSAGE AND ROUTES
Calculator
Hypoprothrombinemia caused by vit K malabsorption

• Adult:
PO/IM
2.5-25 mg, may repeat or increase to 50 mg

• Child:
PO
2.5-5 mg

• Infant:
PO/IM
2 mg

Prevention of hemorrhagic disease of the newborn

• Neonate:
IM
0.5-1 mg within 1 hr after birth, repeat after 2-3 wk if required

Hypoprothrombinemia caused by oral anticoagulants

• Adult and child:
PO/SUBCUT/IM
1-10 mg, may repeat 12-48 hr after
PO
dose or 6-8 hr after
SUBCUT/IM
dose based on INR

Available forms:
Tabs 5 mg; inj 10 mg/ml, 1 mg/0.5 ml

Administer:
Intermittent IV INF route

• 
After diluting with ≥10 ml D
5
NS; give max 1 mg/min

 
IV only when other routes not possible (deaths have occurred)

Y-site compatibilities:
Alfentanil, amikacin, aminophylline, ascorbic acid, atracurium, atropine, azaTHIOprine, aztreonam, bumetanide, buprenorphine, butorphanol, calcium chloride/gluconate, ceFAZolin, cefonicid, cefoperazone, cefotaxime, cefoTEtan, cefOXitin, cefTAZidime, ceftizoxime, cefTRIAXone, cefuroxime, chloramphenicol, chlorproMAZINE, cimetidine, clindamycin, cyanocobalamin, cycloSPORINE, dexamethasone, digoxin, diphenhydrAMINE, DOPamine, doxycycline, enalaprilat, ePHEDrine, EPINEPHrine, epoetin alfa, erythromycin, esmolol, famotidine, fentaNYL, fluconazole, folic acid, furosemide, ganciclovir, gentamicin, glycopyrrolate, heparin, hydrocortisone, imipenem/cilastatin, indomethacin, insulin, isoproterenol, ketorolac, labetalol, lidocaine, mannitol, meperidine, metaraminol, methoxamine, methyldopate, metoclopramide, metoprolol, metroNIDAZOLE, midazolam, morphine, multivitamins, nafcillin, nalbuphine, naloxone, nitroglycerin, nitroprusside, norepinephrine, ondansetron, oxacillin, oxytocin, papaverine, penicillin G potassium, pentamidine, pentazocine, PENTobarbital, PHENobarbital, phentolamine, phenylephrine, potassium chloride, procainamide, prochlorperazine, propranolol, pyridoxime, ranitidine, sodium bicarbonate, succinylcholine, SUFentanil, theophylline, thiamine, ticarcillin/clavulanate, tobramycin, tolazoline, trimetaphan, urokinase, vancomycin, vasopressin, verapamil, vitamin B with C

SIDE EFFECTS

CNS:
Headache,
brain damage
(large doses)

GI:
Nausea, decreased LFTs

HEMA:
Hemolytic anemia, hemoglobinuria, hyperbilirubinemia

INTEG:
Rash, urticaria

RESP:
Bronchospasm,
dyspnea, feeling of chest constriction,
respiratory arrest

PHARMACOKINETICS

PO/INJ:
Metabolized, crosses placenta

INTERACTIONS

Decrease:
action of phytonadione—bile acid sequestrants, sucralfate, antiinfectives, salicylates, mineral oil

Decrease:
action of warfarin—large dose of product

NURSING CONSIDERATIONS
Assess:

• 
Bleeding:
emesis, stools, urine; pressure on all venipuncture sites; avoid all inj if possible

• 
PT during treatment (2-sec deviation from control time, bleeding time, clotting time); monitor for bleeding, pulse, and B/P

Perform/provide:

• 
Storage in tight, light-resistant container

Evaluate:

• 
Therapeutic response: prevention of hemorrhagic disease of the newborn, resolution of hypoprothrombinemia

Teach patient/family:

• 
Not to take other supplements, OTC products, prescription products unless directed by prescriber

• 
About the necessary foods for associated diet

• 
To avoid IM inj; to use soft toothbrush; not to floss, use electric razor until coagulation defect corrected

• 
To report symptoms of bleeding

• 
About the importance of frequent lab tests to monitor coagulation factors

• 
To notify all health care providers of use of this product

• 
To carry emergency ID describing condition and products used

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

pilocarpine ophthalmic

 

pimecrolimus topical

 

pioglitazone (Rx)

(pie-oh-glye′ta-zone)

Actos

Func. class.:
Antidiabetic, oral

Chem. class.:
Thiazolidinedione

ACTION:

Specifically targets insulin resistance; an insulin sensitizer; regulates the transcription of a number of insulin-responsive genes

USES:

Type 2 diabetes mellitus

CONTRAINDICATIONS:

Breastfeeding, children, hypersensitivity to thiazolidinedione, diabetic ketoacidosis

 

Black Box Warning:

NYHA Class III/IV heart failure

Precautions:
Pregnancy (C), geriatric patients, geriatric patients with CV disease, renal/hepatic/thyroid disease, edema, polycystic ovary syndrome, bladder cancer, osteoporosis, pulmonary disease, secondary malignancy

DOSAGE AND ROUTES
Calculator
Monotherapy

• Adult:
PO
15 or 30 mg/day, may increase to 45 mg/day; with strong CYP2C8, max 15 mg/day; with NYHA class I/II heart failure, max 15 mg/day

Combination therapy

• Adult:
PO
15 or 30 mg/day with a sulfonylurea, metformin, or insulin; decrease sulfonylurea dose if hypoglycemia occurs; decrease insulin dose by 10%-25% if hypoglycemia occurs or if plasma glucose is <100 mg/dl, max 45 mg/day

Hepatic dose

• 
Do not use in active hepatic disease or if ALT >2.5 times ULN

Available forms:
Tabs 15, 30, 45 mg

Administer:

• 
Once a day; without regard to meals

• 
Tabs crushed and mixed with food or fluids for patients with difficulty swallowing

SIDE EFFECTS

CNS:
Headache

CV:
MI, heart failure, death (geriatric patients)

ENDO:
Hypo/hyperglycemia

MISC:
Sinusitis, upper respiratory tract infection, pharyngitis
,
hepatotoxicity,
edema, weight gain, anemia, macular edema;
risk of bladder cancer (use >1 yr)

MS:
Rhabdomyolysis,
fractures (females), myalgia

PHARMACOKINETICS

Maximal reduction in FBS after 12 wk; half-life 3-7 hr, terminal 16-24 hr; protein binding >99%

INTERACTIONS

Decrease:
effect of atorvastatin

Decrease:
effect of oral contraceptives; use alternative contraceptive method

Decrease:
pioglitazone effect—CYP2C8 inducers (ketoconazole, fluconazole, itraconazole, miconazole, voriconazole)

Drug/Herb

Increase:
hypoglycemia—garlic, green tea, horse chestnut

Drug/Lab Test

Increase:
CPK, LFTs, HDL, cholesterol

Decrease:
glucose, Hct/Hgb

NURSING CONSIDERATIONS
Assess:

 

Black Box Warning:

Heart failure: do not use in NYHA Class III/IV; excessive/rapid weight gain >5 lb, dyspnea, edema; may need to be reduced or discontinued

• Bladder cancer:
avoid use in a history of bladder cancer; use of pioglitazone >1 yr has shown an increase in bladder cancer

• 
Hypoglycemic reactions:
sweating, weakness, dizziness, anxiety, tremors, hunger; hyperglycemic reactions soon after meals (rare); may occur more often with insulin or other antidiabetics

• Hepatic disease:
check LFTs periodically: AST, LDH; do not start treatment in active heart disease or if ALT >2.5× upper limit of normal; if treatment has already begun, follow closely with continuing ALT levels; if ALT increases to >3× upper limit of normal, recheck ALT as soon as possible; if ALT remains >3× upper limit of normal, discontinue

• FBS, glycosylated HbA1c, plasma lipids/lipoproteins, B/P, body weight during treatment

• 
CBC with differential prior to and during therapy; more necessary in those with anemia, Hct/Hgb (may be decreased in first few months of treatment)

Perform/provide:

• 
Conversion from other oral hypoglycemic agents; change may be made with gradual dosage change; monitor serum glucose during conversion

• 
Storage in tight container in cool environment

Evaluate:

• 
Therapeutic response: decrease in polyuria, polydipsia, polyphagia; clear sensorium; absence of dizziness; stable gait; blood glucose A1c improvement

Teach patient/family:

• 
To self-monitor using a blood glucose meter

• 
About the symptoms of hypo/hyperglycemia, what to do about each

• 
That product must be continued on daily basis; about the consequences of discontinuing product abruptly

• 
To avoid OTC medications or herbal preparations unless approved by prescriber

• 
That diabetes is a lifelong illness; that product is not a cure, it only controls symptoms

• To notify prescriber if oral contraceptives are used, effect may be decreased; not to use product if breastfeeding

• To report symptoms of hepatic dysfunction: nausea, vomiting, abdominal pain, fatigue, anorexia, dark urine, jaundice

• 
To report weight gain, edema

• 
That lab work, eye exams will be needed periodically

Other books

Tinsel Town by Flesa Black
The Case of the Sleepwalker's Niece by Erle Stanley Gardner
The Tactics of Revenge by T. R. Harris
Captivity by Ann Herendeen
A Wedding in Springtime by Amanda Forester
Sweet Seduction by M Andrews
The DeCadia Code (The DeCadia Series Book 1) by Jonathan Yanez, Apryl Baker