OĚlways start with the lowest dosage, then go up ▪ Order might look something like “Dopamine IV drip to keep patient’s systolic BP between and Oěased on the patient’s blood pressure, you increase or decrease the dose When given as a high dose, it’s given for shock (super low blood pressure). These patients can stay in the telemetry unit.ĝon’t give IV epinephrine to a patient who’s healthy and walking and talking – the vasoconstriction will cause a hypertensive crisisĭopamine= When given as a low dose, its purpose is to increase renal perfusion.When your heart’s not working, your blood pressure is zero. Because the heart’s not working= Note that Ěnd you have to do CPR when you give the epinephrine, otherwise, it won’t go anywhere.When given for cardiac arrest, give it as fast as possible.It causes vasoconstriction and bronchodilation.Ěll these drugs will increase the heart rate, but that’s not their purposeĮpinephrine= Given for anaphylactic shock and cardiac arrest.Know which of these drugs act on which receptors Monitor lab values, vital signs, potassium levels,Īdrenergic agonists= Prototype medication: epinephrine, dopamine, dobutamine.IV digoxin has to be over at least five minutes.Verapamil increases plasma levels of digoxin.Quinidine increases the risk of digoxin toxicity.Ĝimetidine (Histamine2-receptor antagonist) increases digoxin levels.▪ Xeropthalmia (yellowish-green halos around objects) ➢ Potassium levels need to be within the normal range ➢ If the patient is hyperkalemic, digoxin is ➢ If a patient is hypokalemic, they are at risk for digoxin toxicity ➢ĜHF patients are usually on loop diuretics which can result in hypokalemia as well ▪ğirst sign is anorexia (loss of appetite) Know the signs and symptoms of digoxin toxicity: Dysrhythmias (atrial fibrillation) = Because of the negative dromotropic effectĬomplications: Digoxin toxicity= Therapeutic level of digoxin: 0.8-2.0.Negative dromotropic effect= Slows down rhythm.▪ Have to count for the full minute ▪ Fifth intercostal space, midclavicular line Negative chronotropic effect= Decreases heart rate: Apical pulse has to be at least 60 before you give the medication.Positive inotropic effect= Increases contraction.West Coast University: NURS MISC Week 6 Pharmacology Lecture Notes 1ĬARDIAC GLYCOSIDES AND HEART FAILURE (Chapter 21, )Ĭardiac glycosides= Prot.
0 kommentar(er)
