Pharmacology Flashcards
(41 cards)
Topical Antimicrobials
Indications:
- Applied to the skin to treat a bacterial, fungal, or viral infection
- creams, lotions, oils, ointments, powders, shampoos, and cleansers
Antibacterials
Bacitracin,
Neomycin,
Mupirocin
Antifungals
Clotrimazole, Ketoconazole,
Miconazole,
Nystatin
Topical Corticosteroids
Indications:
- Inflammation
- Redness
- Itching
Triamcinolone,
Hydrocortisone
Allopurinol
Class: Hypouricemic agent
Indication: Gout
Action: Inhibits xanthine oxidase to prevent uric acid from forming
Nursing Considerations:
- Monitor for side effects of leukopenia, fever, and rash
- Dosage must be individualized
- Teach to avoid foods high in purine
○ Beer, wine, cheeses, beans, anchovies, sardines, liver, kidneys, and cream
Calcium
Indication:
- Hypocalcemia
- Dietary supplement
Action: Supplement calcium
Nursing Considerations:
- Monitor for hypercalcemia
Calcium acetate, calcium carbonate (Tums!!), calcium citrate, calcium gluconate
Vitamin D
Indication:
* Hypoparathyroidism
* Hypocalcemia
* Vitamin D deficiency
Action:
* Supplements Vitamin D stores
Nursing Considerations:
- Monitor for toxicity - fat soluble
- Osteoporosis, hypercalcemia
- With sufficient exposure to sunlight, the body can manufacture all the vitamin D it needs!!
- Therapeutic responses to vitamin D require adequate calcium intake - encourage intake of foods that are high in calcium
Cholecalciferol, Calcitriol, Ergocalciferol
Calcitonin
Indication:
* Osteoporosis
* Paget’s disease
* hypercalcemia
Action:
* Inhibits the activity of osteoclasts and thus decreases bone resorption, and inhibits tubular resorption of calcium, thereby increasing calcium excretion
Side effects:
* Nasal dryness
* Nasal irritation
Nursing Considerations
* Usually administered by nasal spray
Alendronate
Class: Bisphosphonate
Indication: Osteoporosis
Action: Decreases bone resorption by osteoclasts Nursing Considerations:
Side effect: Esophagitis
Contraindication: in clients with a pre-existing esophageal disorder!
Nursing Consideration
* Take with a full glass of water
* Remain upright for 30 minutes after taking (do not take supine or lie down after taking)
* If difficulty or pain with swallowing, or heartburn develops, clients should discontinue the medication and contact their provider
Baclofen
Class: Centrally Acting Muscle Relaxer
Indication: Muscle spasticity: MS, CP, SCI
Action
* Acts within the spinal cord to suppress hyperactive reflexes involved in regulation of muscle movement
Nursing Considerations
* Monitor for CNS depression
* Do not discontinue abruptly - taper over 1 to 2 weeks
* Can cause seizure
Albuterol
Class: Bronchodilator
Indication
* Asthma
* COPD
Action
* Binds to beta2 adrenergic receptors in the airway leading to relaxation of the smooth muscles in the airways
Nursing Considerations
* Be very cautious when using in clients with heart disease, diabetes, glaucoma, or seizures
* Causes tachycardia
Terbutaline
Class: Bronchodilator
Indications
* Rescue/relief and maintenance drug for wheezing
* SOB
* Coughing caused by asthma
Action
* Blocks beta 2 adrenergic receptors in the respiratory system to cause bronchodilation by inhibiting the release of hypersensitivity reaction products from mast cells
Side Effects
* Shakiness
* Jitteriness
* Dizziness
* Drowsiness
* Sleep disturbances
* Weakness
* Headache
* N&V
* Tachycardia
* Hypertension
* Hyperglycemia
* CNS overstimulation
Nursing considerations
* Assess HR, BP, EKG, blood glucose
* Can be given orally, SC, or by inhaler
* 4-6 hour duration
* More SE with oral administration because it requires higher dosage
* Teach proper inhaler use
Methylprednisolone
Class: Steroids
Indication
* Inflammation
* Allergy
* Autoimmune disorders
Action
* Suppress inflammation and normal immune response
Side effects
* Immunosuppression
* Hyperglycemia
* Osteoporosis
* Delayed wound healing
Nursing Considerations
* Monitor for too much steroid
○ Cushing’s symptoms; buffalo hump
Diphenhydramine
Class: Antihistamine
Indication
* Allergy
* Anaphylaxis
* Sedation
Action
* Antagonizes effects of histamine,
* CNS depression
Nursing Considerations
* Monitor for drowsiness
* Anticholinergic effects
Enalapril
Class: ACE inhibitor
Indication:
* Hypertension
* CHF
Action:
* Blocks conversion of Angiotensin I to Angiotensin II
* Inc Renin levels and dec Aldosterone levels in Vasodilation
Nursing Considerations:
* D/C if pt develops a dry cough - angioedema
* Monitor BP
* Contraindicated during pregnancy
Losartan
Class: ARB
Indication:
* Hypertension
* DM Neuropath
* CHF
Action:
* Inhibits Vasoconstrictive properties of Angiotensin II
Nursing Considerations:
* Monitor BP
* Monitor Fluids
* Monitor Renal & Liver status
* Contraindicated during pregnancy
Amlodipine
Class: Calcium Channel Blocker
Indication
* Hypertension
* Angina
Action
* Blocks transport of calcium into muscle cells inhibiting excitation and contraction, causes peripheral vasodilation
Nursing Considerations
* Avoid grapefruit - Blocks the enzyme involved in metabolizing calcium channel blockers, causing their levels to increase
* Monitor BP - orthostatic hypotension
Can cause gingival hyperplasia
Propranolol
Class: Beta Blocker
Indication:
* Hypertension
* Angina
* Arrhythmias
* MI
* Cardiomyopathy
* Alcohol withdrawal
* Anxiety
Action:
* Blocks Beta I & II adrenergic receptors slowing HR
Nursing Considerations:
* DO NOT discontinue abruptly, d/c slowly
* Can mask signs of Hypoglycemia (Monitor Blood sugars)
* Caution with Asthma & COPD - cause bronchospasms
Amiodarone
Therapeutic class: Antiarrhythmic
Indication: Arrhythmias
Action: Stops potassium from leaving cells and prolongs resting period of heart cycle
Adverse effects:
- dizziness
- tremors
- ataxia
- pulmonary fibrosis
- bradycardia
- heart block
- blue-gray skin discoloration
Nursing Considerations:
● Has iodine and can disturb thyroid
● Not given in pregnancy
Adenosine
Class: Antiarrhythmic
Indication
* SVT (Super ventricular tachycardia)
Action
* Slows conduction through AV node, interrupts re-entry through AV node, restoring normal sinus rhythm
* “restarts the heart”
Nursing considerations
* Will be periods of Asystole after admin
* Warn client - will feel like someone kicked you in the chest
* Warn family - they will flatline on monitor
* Rapid push or will not work - follow with 10ml saline
* Use with extreme caution with asthmatics
Atropine
Class: Antiarrhythmic; anticholinergic
Indication:
* Excessive secretions
* Sinus bradycardia
* Heart block
Action:
* Inhibits acetylcholine, inc HR, causing bronchodilation and dec secretions
Nursing Considerations:
* Monitor urinary retention
* Monitor constipation
* Avoid in GLAUCOMA
Digoxin
Class: Cardiac glycoside
Indication
* Heart failure
* A-fib
* A-flutter
* Cardiogenic shock
Action
* Inc contractility, dec HR
* Acts on cellular sodium-potassium ATPase making heart more efficient
Nursing Considerations
* Monitor for Dig toxicity
* Avoid BLACK LICORICE
Monitor HR (hold <60)
Heparin
Class: anticoagulants
Indications
* Strokes
* Chronic a-fib
* Post-operatively
Side Effects
* Bleeding
* Hematuria (pink urine)
* Hematemesis (bloody vomit)
* Bruising
* Down trending H&H
Nursing Considerations
* Monitor for bleeding
Antidote
Protamine Sulfate
Low Molecular Weight Heparin
Class: Anticoagulants
Indications
* DVT prophylaxis
Action
* Stops thrombin from being activated, preventing clots from forming
Nursing Considerations
* Always given subQ
* Porcine derived (may have cultural or religious implications)
* No monitor platelets
Only anticoagulant that can be used in pregnancy
Enoxaparin,
Dalteparin,
Tinzaparin
Warfarin
Class: anticoagulants
Indications
* Venus thrombosis
* Pulmonary embolism
* A-fib
Action
* Disrupts liver synthesis of VitK clotting factors
Nursing Considerations
* Monitor for bleeding
* Monitor PT and INR
○ PT: 10-12 sec
○ INR: 0.9-1.2
* Contraindicated in pregnancy
Antidote
Vitamin K
Aspirin
Class: Anticoagulant
Indication
* Mild to moderate pain
* Stroke prophylaxis
* MI prophylaxis
Action
* Inhibits prostaglandins production to tx fever and inflammation, decreases platelet aggregation leading to decrease clotting
Nursing Considerations
* Risk of bleeding
○ Don’t administer with other anticoagulants
○ D/c 5-7 days prior to surgery
* Caution with pediatric clients
○ Reye’s syndrome can occur with viral infections like the flu or chickenpox: causes vomiting, delirium, coma, and death
○ Only time it is commonly used in peds is in Kawasaki’s disease
* Salicylism = ASA toxicity that causes nausea, tinnitus, headache, delirium, hyperventilation, pulmonary edema then OD causes respiratory depression and acidosis leading to coma and death. Sodium bicarbonate is treatment for acidosis and fluid resuscitation