Dobutamine chronotropic - Study guides, Class notes & Summaries

Side effects of Positive Pressure ventilation - 1. Increased intrathoracic pressure leads to decreased venous return to the heart, decreasing stroke volume, and CO Two types of ventilators - 1. Negative pressure ventilators- i.e iron lung 2. Positive pressure ventilators: hospital bedside ventilators, use positive pressure to force air into the lungs by reversing normal breathing patterns. Stimulates both adrenergic and dopaminergic receptors, lower doses are mainly dopaminergic stimulatin...

To appropriately monitor therapy and client progress, the nurse should be aware that increased myocardial work and O2 demand will occur with which of the following? A. Positive inotropic therapy B. Negative chronotropic therapy C. Increase in balance of myocardial O2 supply and demand D. Afterload reduction therapy Correct Answer: A Section: Questions Set A Explanation Explanation/Reference: Explanation: (A) Inotropic therapy will increase contractility, which will increase myocardial...

Dobutamine Mechanism of Action Dobutamine, a racemic mixture, stimulates myocardial beta1-adrenergic receptors, resulting in increased contractility and heart rate, and stimulates both beta2- and alpha1-receptors in the vasculature. Although beta2 and alpha1 adrenergic receptors are also activated, the effects of beta2 receptor activation may equally offset or be slightly greater than the effects of alpha1 stimulation, resulting in some vasodilation in addition to the inotropic and chronotrop...

Dobutamine- Chronotropic correct answers Used to treat cardiogenic shock Cardiac output, preload, and contractility Venous vasodilator Inotropic medication Use when systolic is 70-100 Dopamine- Chronotropic correct answers Used to treat shock Vasoconstrictor Cardiac output, afterload, and contractility Inotropic medication Use when systolic is <70 and with signs of shock, bradycardia, hypotension Dose: 2-20 mcg/kg/min infusion titrated based on clinical re...

NCLEX-RN Exam (500+ Q&A)QUESTION 1 To appropriately monitor therapy and client progress, the nurse should be aware that increased myocardial work and O2 demand will occur with which of the following? A. Positive inotropic therapy B. Negative chronotropic therapy C. Increase in balance of myocardial O2 supply and demand D. Afterload reduction therapy Correct Answer: A Section: Questions Set A Explanation Explanation/Reference: Explanation: (A) Inotropic therapy will increase contracti...

NCLEX-RN 515 Exam Questions with Correct Answers and Rationale Exam A QUESTION 1 To appropriately monitor therapy and client progress, the nurse should be aware that increased myocardial work and O2 demand will occur with which of the following? A. Positive inotropic therapy B. Negative chronotropic therapy C. Increase in balance of myocardial O2 supply and demand D. Afterload reduction therapy Correct Answer: A Section: Questions Set A Explanation Explanation/Reference: Explanati...

2023 NCLEX RN EXAM TEST BANK 500 REAL EXAM QUESTIONS AND ANSWERS COMPLETE STUDY GUIDE QUESTIONS AND ANSWERS 100% GUARANTEE A++  MULTIPLE CHOICE  FILL IN THE BLANK  ORDERED RESPONSE  HOT SPOT QUESTIONS  A+ GUARANTEE Exam A QUESTION 1 To appropriately monitor therapy and client progress, the nurse should be aware that increased myocardial work and O2 demand will occur with which of the following? A. Positive inotropic therapy B. Negative chronotropic therapy C. Increas...

NURS 406 Pharmacology Nursing Exam Guide Latest Update 100%Verified Solutions. What are the major functions of the α1 receptor? - CORRECT ANSWER--Increase vascular smooth muscle contraction, increase pupillary dilator muscle contraction (mydriasis), increase intestinal and bladder sphincter muscle contraction What are the major functions of the α2 receptor? - CORRECT ANSWER--Decrease sympathetic outflow, decrease insulin release, decrease lipolysis, increase platelet aggregation, decreas...

2023 NCLEX RN EXAM TEST BANK 500 REAL EXAM QUESTIONS AND ANSWERS COMPLETE STUDY GUIDE QUESTIONS AND ANSWERS 100% GUARANTEE A++  MULTIPLE CHOICE  FILL IN THE BLANK  ORDERED RESPONSE  HOT SPOT QUESTIONS  A+ GUARANTEE Exam A QUESTION 1 To appropriately monitor therapy and client progress, the nurse should be aware that increased myocardial work and O2 demand will occur with which of the following? A. Positive inotropic therapy B. Negative chronotropic therapy C. Increas...

NUR 6521 Pharmacology Adrenergic/ Cholinergic drugs QUESTIONS AND ACCURATE ANSWERS 2023/2024 Antidote for cholinergics - Correct Answer Atropine s/s of cholinergic crisis - Correct Answer -circulatory shock - hypoTN - Bloody diarrhea - shock - cardiac arrest (Namenda) memantine used to treat - Correct Answer alz. and dementia (Aricept) donepezil used to treat - Correct Answer alz. and dementia Pyridostigmine used to treat - Correct Answer myasthenia gravis Dobutamine antid...