Mosby's 2014 Nursing Drug Reference (314 page)

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

pegloticase (Rx)

(peg-loe′ti-kase)

Krystexxa

Func. class.:
Antigout agent

Chem. class.:
Pegylated, recombinant, mammalian urate oxidase enzyme

ACTION:

Lowers plasma uric acid concentration by converting uric acid to allantoin, which is readily excreted by the kidneys

USES:

Chronic gout in patients experiencing treatment failure

CONTRAINDICATIONS:

Hypersensitivity, G6PD deficiency

Precautions:
Pregnancy (C), breastfeeding, children/infants/neonates, African-American patients, heart failure

 

Black Box Warning:

Requires specialized setting, experienced clinician

DOSAGE AND ROUTES
Calculator

• Adult:
IV INF
8 mg over 2 hr q2wk

Available forms:
Sol for inj 8 mg/ml

Administer:
Intermittent IV INF route

• 
Reconstitute:
Visually inspect for particulate matter, discoloration whenever sol/container permits, use aseptic technique, withdraw 8 mg (1 ml) of product/250 ml 0.9% NaCl or 0.45% NaCl, invert several times to mix, do not shake; discard remaining product in vial

• 
Premedicate:
With antihistamines and corticosteroids in all patients and acetaminophen if deemed necessary to prevent anaphylaxis, inf site reactions

• 
Infusion:
If refrigerated, allow to come to room temp, do not warm artificially; give over 120 min, do not give IV push or bolus; use inf by gravity feed, syringe-type pump, or inf pump; given in a specialized setting by those who can manage anaphylaxis or inj site reactions;
monitor during and for 1 hr after infusion; if reaction occurs, slow or stop infusion, may be restarted at a slower rate; do not admix

• 
Storage of diluted product in refrigerator or at room temp for up to 4 hr; refrigerator is preferred, protect from light, do not freeze, use within 4 hr of preparation

SIDE EFFECTS

CNS:
Dizziness, fatigue, fever

CV:
Chest pain
,
heart failure,
hypotension

GI:
Nausea
, vomiting, diarrhea, constipation

GU:
Nephrolithiasis

HEMA:
Anemia

INTEG:
Ecchymosis,
erythema, pruritus, urticaria

MS:
Back pain, arthralgia, muscle spasm

SYST:
Antibody formation, infection, anaphylaxis, infusion
-
related reactions

RESP:
Dyspnea
, upper respiratory infection

PHARMACOKINETICS

Remains primarily in intravascular space after administration, elimination half-life 2 wk, mean nadir uric acid concentration 24-72 hr

Interactions

Do not use with urate-lowering agents (allopurinol, probenecid, febuxostat, sulfinpyrazone)

NURSING CONSIDERATIONS
Assess:

• 
Gout:
pain in big toe, feet, knees, redness, swelling, tenderness lasting a few days to weeks; intake of alcohol, purines, if patient is overweight or taking diuretics

• 
Obtain uric acid levels at baseline, before administration; 2 consecutive uric acid levels of >6 mg/dl may indicate therapy failure; greater chance of anaphylaxis; infection-related reactions

 

Black Box Warning:

Specialized care setting: use only in facility where emergency equipment is available, anaphylaxis may occur

 

Black Box Warning:

Infusion reactions: monitor for reactions for ≥1 hr after use

Evaluate:

• 
Therapeutic response: decrease uric acid levels; relief of pain, swelling, redness in toes, feet, knees

Teach patient/family:

• 
About reason for inf, expected results

• 
To notify prescriber during inf of allergic reactions or redness, swelling, pain at inf site

• 
That continuing follow-up exams and uric acid levels will be needed

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

HIGH ALERT
PEMEtrexed (Rx)

(pem-ah-trex′ed)

Alimta

Func. class.:
Antineoplastic-antimetabolite

Chem. class.:
Folic acid antagonist

ACTION:

Inhibits multiple enzymes that reduce folic acid, which is needed for cell replication

USES:

Malignant pleural mesothelioma in combination with CISplatin; non–small-cell lung cancer as single agent; nonsquamous, non–small-cell lung cancer (1st-line treatment)

Unlabeled uses:
Bladder, breast, colorectal, gastric, head/neck, pancreatic, renal cancers

CONTRAINDICATIONS:

Pregnancy (D), hypersensitivity, ANC <1500 cells/mm
3
, CCr <45 ml/min, thrombocytopenia (<100,000/mm
3
), anemia

Precautions:
Breastfeeding, children, renal/hepatic disease

DOSAGE AND ROUTES
Calculator

• Adult:
IV INF
500-600 mg/m
2
given over 10 min on day 1 of 21-day cycle with CISplatin 75 mg/m
2
infused over 2 hr beginning 1/2 hr after end of pemetrexed inf

Renal dose

• Adult:
IV INF
CCr <45 ml/min, not recommended

Available forms:
Inj, single-use vials, 100, 500 mg

Administer:

• 
Vit B
12
and low-dose folic acid as prophylactic measure to treat related hematologic, GI toxicity; 400-1000 mcg/day × 7 days prior to 1st dose and × 21 days after last dose, vit B
12
1 mg IM 1 wk prior to 1st dose and q 3 cycles (9 wk) thereafter

• 
Premedicate with corticosteroid (dexamethasone) given PO bid day before, day of, and day after administration of PEMEtrexed

Intermittent IV INF route

• 
Use cytotoxic handling procedures

• 
Reconstitute 500-mg vial/20 ml 0.9% NaCl inj (preservative free) = 25 mg/ml, swirl until dissolved, further dilute with 100 ml 0.9% NaCl inj (preservative free), give as IV inf over 10 mg

• 
Use only 0.9% NaCl inj (preservative free) for reconstitution, dilution

• 
Do not begin a new cycle unless neutrophils (ANC) are ≥1500 cells/mm
3
, platelets are ≥100,000 cells/mm
3
, CCr is ≥45 ml/min

• 
Platelet nadir <50,000/mm
3
regardless of the ANC:
If necessary, delay until platelet count recovery, reduce PEMEtrexed and CISplatin by 50%; grade 3/4 toxicity occurs after 2 reductions, discontinue both products

• 
ANC nadir <500/mm
3
when platelet nadir is ≥50,000/mm
3
:
If necessary, delay until ANC recovery, reduce PEMEtrexed and CISplatin by 75%; if grade 3/4 toxicity occurs after 2 reductions, discontinue both products

• 
CTC Grade 3/4 nonhematologic toxicity including diarrhea requiring hospitalization and excluding neurotoxicity, mucositis, and grade 3 transaminase elevations:
Withhold therapy until pretherapy value or condition, reduce by 75% both products, if grade 3 or 4 toxicity occurs after 2 reductions, discontinue both products

• 
CTC grade 3/4 mucositis:
Withhold therapy until pretherapy condition, reduce 50% of PEMEtrexed, if grade 3 or 4 mucositis occurs after 2 dosage reductions, discontinue both products

• 
CTC grade 2 neurotoxicity:
Withhold therapy until pretherapy value or condition, reduce dose of CISplatin by 50%

• 
CTC grade 3/4 neurotoxicity:
discontinue both products

Y-site compatibilities:
Acyclovir sodium, alfentanil, allopurinol, amifostine, amikacin, aminocaproic acid, aminophylline, amiodarone, amphotericin B lipid complex, amphotericin B liposome, ampicillin, ampicillin-sulbactam, atenolol, atracurium, azithromycin, aztreonam, bivalirudin, bleomycin, bumetanide, buprenorphine, butorphanol, CARBOplatin, carmustine, ceftizoxime, cefTRIAXone, cefuroxime, cimetidine, cisatracurium, CISplatin, clindamycin, cyclophosphamide, cycloSPORINE, cytarabine, DACTINomycin, DAPTOmycin, dexamethasone, digoxin, diltiazem, diphenhydrAMINE, DOCEtaxel, dolasetron, DOPamine, doxacurium, enalaprilat, ePHEDrine, EPINEPHrine, eptifibatide, ertapenem, esmolol, etoposide, famotidine, fenoldopam, fentaNYL, fluconazole, fludarabine, fluorouracil, foscarnet, fosphenytoin, furosemide, ganciclovir, gatifloxacin, glycopyrrolate, granisetron, haloperidol, heparin, hydrocortisone, HYDROmorphone, hydrOXYzine, ifosfamide, imipenem-cilastatin, insulin (regular), isoproterenol, ketorolac, labetalol, leucovorin, levofloxacin, lidocaine, linezolid, LORazepam, magnesium, mannitol, meperidine, meropenem, mesna, methyldopate, methylPREDNISolone, metoclopramide, metoprolol, midazolam, milrinone, mitoMYcin, mivacurium, morphine, moxifloxacin, nafcillin, naloxone, nesiritide, nitroglycerin, norepinephrine, octreotide, oxaliplatin, PACLitaxel, pamidronate, pancuronium, PENTobarbital, PHENobarbital, piperacillin-tazobactam, polymyxin B, potassium chloride/phosphates, procainamide,
promethazine, propranolol, ranitidine, remifentanil, rocuronium, sodium acetate/bicarbonate/phosphates, succinylcholine, SUFentanil, sulfamethoxazole-trimethoprim, tacrolimus, theophylline, thiopental, thiotepa, ticarcillin, ticarcillin-clavulanate, tigecycline, tirofiban, trimethobenzamide, vancomycin, vecuronium, verapamil, vinBLAStine, vinCRIStine, vinorelbine, zidovudine, zoledronic acid

SIDE EFFECTS

CNS:
Fatigue
,
fever
,
mood alteration, neuropathy

CV:
Thrombosis/embolism,
chest pain
, arrhythmia exacerbation

GI:
Nausea, vomiting, anorexia, diarrhea, ulcerative stomatitis, constipation, dysphagia, dehydration

GU:
Renal failure,
creatinine elevation

HEMA:
Neutropenia, leukopenia, thrombocytopenia, myelosuppression, anemia

INTEG:
Rash, desquamation

RESP:
Dyspnea

SYST:
Infection with/without neutropenia, radiation recall reaction, toxic epidermal necrolysis, Stevens-Johnson syndrome, anaphylaxis

PHARMACOKINETICS

Not metabolized; excreted in urine (unchanged 70%-90%); not known if excreted in breast milk; half-life 3.5 hr, 81% protein binding

INTERACTIONS

Increase:
bleeding risk—NSAIDs, anticoagulants, platelet inhibitors, salicylates, thrombolytics

Decrease:
clearance of PEMEtrexed—nephrotoxic products

NURSING CONSIDERATIONS
Assess:

 
Previous radiation treatments; radiation recall reactions have occurred (erythema, exfoliative dermatitis, pain, burning)

 
Bone marrow depression:
CBC, differential, platelet count; monitor for nadir, recovery; new cycle should not begin if ANC <1500 cells/mm
3
, platelets <100,000 cells/mm
3
, CCr <45 ml/min

• 
Renal studies: BUN, serum uric acid, urine CCr, electrolytes before, during therapy

• 
I&O ratio; report fall in urine output to <30 ml/hr

• 
Monitor temp q4hr; fever may indicate beginning infection; no rectal temp

 
Neurotoxicity:
CTC grade 2: withhold until resolution to at least pretherapy value/condition, reduce CISplatin by 50%; CTC grade 3-4: immediately discontinue product and CISplatin if given in combination

• 
Mucositis:
CTC 3-4: withhold until resolution to at least pretherapy value/condition, reduce dose by 50%; if grade 3/4 occurs after 2 dosage reductions, discontinue product and CISplatin

• 
Bleeding:
bleeding time, coagulation time during treatment; bleeding: hematuria, guaiac, bruising or petechiae, mucosa or orifices q8hr

• 
Buccal cavity q8hr for dryness, sores, ulceration, white patches, oral pain, bleeding, dysphagia

 
Severe allergic reaction/toxic epidermal necrolysis:
rash, urticaria, itching, flushing

Perform/provide:

• 
Rinsing of mouth tid-qid with water, club soda; brushing of teeth bid-tid with soft brush or cotton-tipped applicators for stomatitis; use unwaxed dental floss

• 
Storage at 77° F, excursions permitted at 59° F to 86° F, not light sensitive, discard unused portions

Evaluate:

• 
Therapeutic response: decreased spread of malignancy

Teach patient/family:

• 
To report any complaints, side effects to nurse or prescriber: black, tarry stools, chills, fever, sore throat, bleeding, bruising, cough, SOB, dark or bloody urine

• 
To avoid foods with citric acid, hot or rough texture if stomatitis is present

• 
To report stomatitis: any bleeding, white spots, ulcerations in mouth to prescriber; to examine mouth daily, to report symptoms to nurse, to use good oral hygiene

• 
That contraceptive measures recommended during therapy, for #8 wk after cessation of therapy; to discontinue breastfeeding because toxicity to infant may occur

• 
To avoid alcohol, salicylates, live vaccines

• 
To avoid use of razors, commercial mouthwash

• 
To eat foods high in folic acid; to take supplements as prescribed

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