Chronotropic heart rate - Study guides, Class notes & Summaries

The heart layers (from OUTSIDE-IN): fibrous pericardium, parietal pericardium, pericardial cavity, visceral pericardium (epicardium), myocardium, endocardium ~basically pericardium-myocardium-endocardiun If fluid collects in the pericardium, the heart stretches & what occurs cannot contract (restricted)- only a certain amount of fluid can fill Heart lies in the mediastinum Inferior vena cava lower body (lower legs, abdomen, chest) Superior vena cava upper portion of body (head, neck, and up...

Pharmacology Exam 4 Chapter 18: Adrenergic Drugs 2024/2025 (Verified Answers). Chapter 18: Adrenergic Drugs 1. The nurse is aware that adrenergic drugs produce effects similar to which of these nervous systems? a. Central nervous system b. Somatic nervous system c. Sympathetic nervous system d. Parasympathetic nervous system Adrenergic drugs mimic the effects of the sympathetic nervous system. 2. When an adrenergic drug stimulates beta1-adrenergic receptors, the result is an increased f...

ACSM CEP EXAM REVIEW QUESTIONS AND ANSWERS, GRADED A+ Absolute Contraindications to Exercise Testing - -• A recent significant change in the resting ECG suggesting significant ischemia, recent MI (within 2 d), or other acute cardiac event • Unstable angina • Uncontrolled cardiac dysrhythmias causing symptoms or hemodynamic compromise • Symptomatic severe aortic stenosis • Uncontrolled symptomatic heart failure • Acute pulmonary embolus or pulmonary infarction • Acute myoc...

Pharmacology Exam 4 Chapter 18: Adrenergic Drugs 2024/2025 (Verified Answers). Chapter 18: Adrenergic Drugs 1. The nurse is aware that adrenergic drugs produce effects similar to which of these nervous systems? a. Central nervous system b. Somatic nervous system c. Sympathetic nervous system d. Parasympathetic nervous system Adrenergic drugs mimic the effects of the sympathetic nervous system. 2. When an adrenergic drug stimulates beta1-adrenergic receptors, the result is an increased f...

Chronotropic : heart rate Inotropic : force of myocardial contractility Dromotropic : conduction velocity through the AV node Systole : contraction of chamber, blood is being ejected. Pressure rises during systole. Diastole : rest, relaxation of chamber, chamber is allowed to fill. Pressure falls during diastole. Stroke Volume 2 | P a g e : the amount of blood left ventricle pumps in each beat. (mL/beat) Cardiac output- definition : The amount of blood pumped into the aorta each...

1. A nurse cares for a client who is prescribed a drug that blocks a hormone's receptor site. Which therapeutic effect should the nurse expect? a. Greater hormone metabolism b. Decreased hormone activity c. Increased hormone activity d. Unchanged hormone response Correct ANS: B Hormones cause activity in the target tissues by binding with their specific cellular receptor sites, thereby changing the activity of the cell. When receptor sites are occupied by other substances that block horm...

MS II Prep U Ch. 26: Management of Patients With Dysrhythmias and Conduction Problems A home care nurse is visiting a left-handed client who has an implantable cardioverter-defibrillator (ICD) implanted in his left chest. The client tells the nurse how excited he is because he's planning to go rifle hunting with his grandson. How should the nurse respond? "Enjoy your time with your grandson." "You can't shoot a rifle left-handed because the rifle's recoil will traumatize the ICD s...

Wes Todd RCIS Meds Question with complete solution Wes Todd RCIS Meds Chronotropic Drugs/Agents effects what? - correct answer Heart Rate Example of a positive chronotropic drug - correct answer Adrenaline - increase HR Example of a negative chronotropic drug - correct answer Digoxin - decrease HR Dromotropic Drugs effects what? - correct answer the conduction of electrical impulses through the myocardium Example of a positive dromotropic drug - correct answer Phenytoin ...

Digoxin (Lanoxin) Inotropic and Chronotropic Effects: • Positive Inotrope: Increases the strength of heart contractions. • Negative Chronotrope: Decreases the heart rate. • Assessment: Measure the apical pulse for a full minute to evaluate the effects. ________________________________________ Client with Long-Term Use of Digoxin and Furosemide (Lasix) Risk of Digoxin Toxicity: • Interaction: Long-term use of furosemide can cause hypokalemia (low potassium levels), heightening the...

NSCA-CSCS EXAM PREP EXAM REVIEW QUESTIONS AND ANSWERS, RATED A+ The pelvis is located _______________ to the patella. - -superior Which of the following is the smallest contractile unit of skeletal muscle? myosin epimysium sarcolemma sarcomere - -sarcomere Which of the following describes Type I muscle fibers? rapid force development capabilities fatigue resistant with high aerobic energy supply inefficient and easily fatigable high myosin ATPase activity - -fatigue resistant with h...