Exam 22: Structure and Function of the Cardiovascular and Lymphatic Systems

A nurse is assessing the heart rate.The nurse obtains a normal heart rate.The average heart rate in a healthy adult is _____ beats per minute.

_____ is the process by which an action potential in the plasma membrane of a myocardial cell triggers the events that directly cause contraction of the myocardial cells.

After activation of the Bainbridge reflex in a patient,the nurse assesses for:

A nurse recalls the internal lining of the cardiovascular system is formed by what tissue?

Which statement indicates the nurse understands blood flow? Oxygenated blood flows through the:

When a nursing student wants to know where the primary cardiovascular control center is located,what is the nurse's best response? In the:

A 50-year-old female received trauma to the chest that caused severe impairment of the primary pacemaker cells of the heart.Which of the following areas received the greatest damage?

The nurse is measuring cardiac output in a resting patient.the normal baseline for cardiac output in this patient is _____ L/min.

When a student nurse asks the nurse how the cardiac electrical impulse normally begins,what is the most correct response? The cardiac electrical impulse normally begins spontaneously in the sinoatrial (SA)node because it:

A nurse is teaching about the heart.Which information should the nurse include? The chamber of the heart that generates the highest pressure is the:

A nurse is evaluating the direct end effect of the renin-angiotensin-aldosterone system.Which principle should the nurse remember?

Increases in which of the following would cause the nurse to assess for decreased blood flow? (Select all that apply.)

A 54-year-old male is diagnosed with left bundle branch block.Which of the following structures would not receive an electrical impulse?

The _____ represents the sum of all ventricular muscle cell depolarization.

A cardiologist is teaching about myocardial cells.Which information should the cardiologist include? _____ are thickened areas of the sarcolemma of myocardial cells that enable electrical impulses to travel in a continuous cell-to-cell fashion.

A 20-year-old male underwent an echocardiogram to assess chest pain.Results revealed a congenital defect in papillary muscles.Which of the following would the nurse expect to occur?

The nurse is planning care for a patient with heart problems.Which information should the nurse remember? The _____ artery travels down the interventricular septum and delivers blood to portions of the left and right ventricle.

A 50-year-old female presents with a low heart rate and low blood pressure.She is given an intravenous (IV)infusion of fluids.The increase in atrial distension results in:

A nurse is discussing the pressure generated at the end of diastole.Which term is the nurse describing?

Important mechanisms for maintaining venous return to the right atrium include (elect all that apply):