Pharmacology Flashcards
Adenosine Action
endongenous nucleotide: slows conduction through the AV node; blocks reentrant pathways in SVT
Adenosine Indication
SVT
Adenosine Contraindications
2nd or 3rd degree AV blocks; atrial flutter; atrial fibrillation, ventricular tachycardia, wolf-Parkinson-white syndrome, hypersensitivity; may cause bronchoconstriction.
Adenosine side effects
facial flushing, pain palpitations, headache, dyspnea, vertigo, nausea, metallic taste
Adenosine Dose and administration
Pediatric dose: use tape
6 mg rapid IVP, 20 mL saline flush/proximal IV;
If no conversion after 1-2 minutes repeat dose of 12 mg rapid IVP followed by 20 mL flush
Albuterol action
sympathomimetic bronchodilator, acts selectively on beta-2 receptors to relax bronchial smooth muscle tissue
Albuterol indications
bronchospasm secondary to asthma or exacerbation due to COPD
Albuterol contraindications
hypertension, hypersensitivity, tachycardia secondary to digitalis toxicity
Albuterol precautions
patients with cardiovascular disease or CHF
Albuterol side effects
headache, hypertension, drowsiness, vertigo, dysrhythmias, nausea
Albuterol dosage & administration
2.5 mg with 3-6 mL NS with O2 set to 6LPM; may repeat if no adverse effects or treatment not working
DuoNeb substance
3 mg of albuterol sulfate equal to 2.5 albuterol base; 0.5 mg Ipratropium in isotonic sterile sodium chloride
DuoNeb action
maximize response in treatment for patients with severe COPD symptoms; producing greater bronchodilation effects.
DuoNeb indications
treatment of bronchospasm associated with asthma, COPD, respiratory distress, drowning, allergic reaction,
toxic inhalation
DuoNeb side effects
headaches, tachycardia, palpitations, dizziness, nausea, dry mouth, *occasionally can make breathing worse immediately after treatment
DuoNeb contraindications
hypersensitivity to any of its components including atropine
DuoNeb precautions
cardiovascular disorders, especially coronary insufficiency, cardiac arrythmias, and hypertension, convulsive disorders, use in pregnancy only if benefit outweigh the risks.
DuoNeb dosage and administration
3 mL vial, may repeat 2X if wheezing persists
Amiodarone action
antiarrythmic medication; calcium, potassium and sodium channel blocker; negative chronotropic, negative dromotropic, and vasodilator.
Amiodarone Indications
shock refractory V-fib; shock refractory pulseless V-tach;
hemodynamically unstable V-tach refractory to treatment; control of hemodynamically stable VT; use as adjunct to cardioversion of SVT and PSVT;
Amiodarone Contraindications
hypersensitivity, cardiogenic shock, sinus bradycardia, high degree AV block.
Amiodarone Incompatibilities
do not mix with sodium bicarbonate
Amiodarone side effects
bradycardia, nausea, AV block, vasodilation and hypotension
Amiodarone dosage and administration
cardiac arrest: 300 mg then 150 mg after 3-5 min; followed by a 20-30 mL flush. SLOW DRAW from vial with large bore needle.