Pharm 2 Exam 1 Flashcards
Thiazide Diuretic
hydrochlorothiazide (HCTZ) Indications
Edema, HF, Diabetes, HTN, Idiopathic Hypercalciuria
Loop Diuretic
furosemide (lasix) indications
Management of edema in HF, Hepatic or Renal disease, HTN, Hypercalcemia
*Potassium-Sparing Diuretic
spironolactone (Aldactone) indications
Hyperaldosteronism, HTN,
Reversing of hypokalemia casued by Potassium-Wasting diuretics,
heart failure in pediatric patient.
Thiazide Diuretic
hydrochlorothiazide (HCTZ)
Contraindications/Precautions
Allergy, Hepatic Coma, Anuria, Severe Renal Failure
Loop Diuretic
furosemide (lasix)
Contraindications/Precautions
Allergy, hepatic coma, severe electrolyte loss
Potassium-Sparing Diuretic
spironolactone (Aldactone)
Contraindications/Precautions
Allergy, Hyperkalemia, Renal Failure, Anuria
Thiazide Diuretic
hydrochlorothiazide (HCTZ)
Side/Adverse Effects
Hypokalemia, Hypercalcemia, Hyperglycemia, Elevated Lipids, Elevatid Uric Acid
Loop Diuretic
furosemide (Lasix)
Side/Adverse Effects
Hypokalemia, photosensitivity, dizziness, headache
Potassium-Sparing Diuretic
spironolactone (Aldactone)
Side/Adverse Effects
Gynecomastia, amenorrhea, irregular menses, postmenopausal bleeding, hyperkalemia, dizziness, headache
*Thiazide Diuretic
hydrochlorothiazide (HCTZ) Interactions
Corticosteroids,
digoxin,
oral hypoglycemics
*Loop Diuretic
furosemide (Lasix) interactions
*NSAIDs - nephrotoxic - Increased BUN/Creatinine
*Vancomycin: nephrotoxic!!
Corticosteroids
*Digoxin - Increased levels - risk for toxicity
*Lithium - Increased levels - risk for toxicity
Aminoglycoside antibiotics
Potassium-Sparing Diuretic
spironolactone (Aldactone) interactions
ACE Inhibitors, Lithium, NSAIDs
*Thiazide Diuretic - hydrochlorothiazide (HCTZ) & Loop Diuretic
furosemide (Lasix) education
Potassium wasting so watch for Hypokalemia symptoms (Alkalosis, Shallow Resp., Irritability, Confuson, Weakness, Arrhythmias, Lethargy, Thready Pulse, Reduced Bowel Sounds
*Potassium-Sparing Diuretic
spironolactone (Aldactone) education
*watch for Hyperkalemia (muscle twitching -> cramps -> parasthesia, irritability and anxiety, reduced BP, EKG changes, Dysrhythmias & Irregular Rhythm, Abdominal Cramping, Diarrhea)
older adults & diuretics
Start with lower doses and gradually increase - goal is a lowest effective dose
Monitor for s/s of hyperkalemia, hypokalemia, dehydration, o/s hypotension
Change positions slowly
Have alternate methods for urination available (i.e. bedside commode, urinal)
Cardiac Glycoside
digoxin (Lanoxin) indications
Systolic heart failure, atrial fibrillation
Action: Positive inotropic, negative chronotropic, negative dromotripic
Cardiac Glycoside
digoxin (Lanoxin)
Contraindications/Precautions
Allergy, second or third-degree heart block, ventricular tachycardia or vibrilation, diastolic HF, subaortic stenosis
Cardiac Glycoside
digoxin (Lanoxin)
Side / Adverse Effects
Brady/Tachycardia, Hypotension, Headache, fatigue, confusion, convulsions, colored vision, halo vision, anorexia, nausea, vomiting, diarrhea
Cardiac Glycoside
digoxin (Lanoxin) Interactions
Amiodarone, quinidine, verapamil, these can increase levels by 50%
Cardiac Glycoside
digoxin (Lanoxin) Admin
Low therapeutic index, levels are 0.5-2ng/mL
Cardiac Glycoside
digoxin (Lanoxin)
Interventions / Considerations
*Low K+/Mg+ may increase toxicity
*Admin of Digoxicine immune Fab needed for severe toxicity
*Steps to manage Toxicity:
Discontinue, Begin ECG Monitoring & Give antidysrhythmics as ordered, Determine serum digoxin and electrolyte levels, admin K+ supplements for hypokalemia if indicated, institute supportive therapy for GI symptoms (N/V/D), Admin antidote (digoxin immune Fab) if indicated
*digoxin (Lanoxin) s/s toxicity Education
Bradycardia, Headache, Dizziness, Confusion, Nausea, Blurred/Yellow Vision
Order of Prescription for HF
Order of Prescription - ACE Inhibitors -> ARBs -> Beta Blockers -> Loop Diuretics -> Digoxin
phosphodiesterase inhibitor
*milrinone (Primacor) indications
*ICU Setting for acute heart failure
Action: Positive inotropic, causes vasodilation
phosphodiesterase inhibitor
milrinone (Primacor) Contraindications/Precautions
Allergy, aortic or pulmn. vasc. disease, diastolic HF
phosphodiesterase inhibitor
milrinone (Primacor) Side / Adverse Effects
Vent. dysrhythmia in 12% of patients, angina, hypokalemia, tremor, thrombocytopenia
phosphodiesterase inhibitor
milrinone (Primacor) Interactions
Using with diuretics can cause Hypovolemia and reuced cardiac filling
Additive inotropic effects if used with digoxin
Class 1A (sodium channel blocker) quinidine (Quinidex) Indications
Long term treatment of atrial fibrilation and atrial flutter
Action: Blocks sodium entry into cells, slowing impulse conduction
Class 1A (sodium channel blocker) quinidine (Quinidex) Contraindications/Precautions
Allergy, severe heart block, severe HF, asthma, myasthenia gravis, low WBCs
Class 1A (sodium channel blocker) quinidine (Quinidex) Side / Adverse Effects
GI, Hypotension, ventricular dysrhythmias (from toxicity), arterial embolism, cinchonism (tinnitus, visual disturbances, headache, N/V)
Class 1A (sodium channel blocker) quinidine (Quinidex) interactions
Anticholinergics, antidysrhythmics, cholinergic, antihypertensives, digoxin, grapefruit juice
Class 1A (sodium channel blocker) quinidine (Quinidex) interventions/ considerations
Monitor pulse, bp, and GI Keep patient supine during IV therapy Monitor ECG periodically with oral and constantly with IV Monitor toxicity Use IV Pump! Monitor s/s of cinchonism
Class 1C (sodium channel blocker) flecainide (Tambocor) indicaitons
Serious uncontrolled superventricular and ventricular tachydysrhythmias
Long-term for some supraventricular dysrhythmias
Action: Blocks sodium into cardiac cells
Class 1C (sodium channel blocker) flecainide (Tambocor) Contraindications/Precautions
Allergy, second or third degree AV block, prolonged QT interval, recent MI, shock, electrolyte imbalance
flecainide (Tambocor) Side / Adverse Effects
Blurry vision/difficulty focusing
edema in lower extremities
widening or prolongation of QT interval
weight increase
worsening HF, the potential for 1st deg. av block and multple dysrhytmias
Class 1C (sodium channel blocker) flecainide (Tambocor) interactions
digoxin, beta blockers, calcium channel blockers
Class 1C (sodium channel blocker) flecainide (Tambocor) Admin
Oral route only - pill
Class 1C (sodium channel blocker) flecainide (Tambocor) Interventions / Considerations
Montior for visual disturbances/changes in vision
Monitor for crackles in lungs, edema, wt. gain
Periodic ECG monitoring
Monitor blood levels to detect toxicity
Begin with the lowest dose and increase no more than every 4 days
Class III (potassium channel blocker) amiodarone (Cordarone, Pacerone) Indications
Life-threatening ventricular tachycardia or fibrillation that’s resistant to other drugs
Treats atrial fibrillation
Action: Block potassium channels, decreases automaticity, decreases contractility, dilates coronary and peripheral vessels
Class III (potassium channel blocker) amiodarone (Cordarone, Pacerone) Contraindications/Precautions
Pregnancy, lactation, allergy, shock, bradycardia, heart block, sinus node dysfunction, severe hepatic disease
*amiodarone (Cordarone)
Side / Adverse Effects
GI, pulmonary toxicity, visual, cardiac, blue-grey discoloration of skin, CNS
Class III (potassium channel blocker) amiodarone (Cordarone, Pacerone) Administration
PO/IV
During IV, monitor cardiac rhythm constantly
IV needs central line to prevent thrombophlebitis
*amiodarone (Cordarone) Interventions / Considerations
Monitor GI Symptoms
Baseline and periodic chest x-ray and pulm. function tests - Monitor for cough, dyspnea, difficulty breathing*
Auscultate breath sounds and report changes
Monitor vision or light sensitivity changes
HR/BP
Monitor wt. change, edema, skin discol and CNS effects
*verapamil (Calan) Indications
- Rapid ventricular response to atrial flutter
- Convert supraventricular tachycardia to regular sinus rhythm
- slow HR of atrial fibrillation and flutter*
action: Block calcium channels in myocardium, prolong PR interval
Class IV (calcium channel blocker) verapamil (Calan) Contraindications/Precautions
Allergy, severe hypotension, cardiogenic shock, liver or kidney dysfunction
Class IV (calcium channel blocker) verapamil (Calan) Side / Adverse Effects
Hypotension, bradycardia, HF, peripheral edema of ft/legs, lightheadedness, dizziness
Class IV (calcium channel blocker) verapamil (Calan) Interactions
Antihypertensives, lithium, grapefruit juice
Class IV (calcium channel blocker) verapamil (Calan) Administration
PO with food
IV - monitor vitals and cardiac rhythm continuously