Author Question: Your patient is a 62-year-old woman complaining of a racing heart. Your examination of the patient ... (Read 123 times)

pane00 · **on:** Jun 25, 2018

Your patient is a 62-year-old woman complaining of a racing heart. Your examination of the patient reveals a pulse rate of 192 beats/min. Briefly explain why recognition of a rapid heart rate is important when providing patient care.

What will be an ideal response?

Question 2

An ECG lead that has a positive and negative electrode is called a(n) _____ lead.

Fill in the blanks with correct word

hanadaa · **Reply #1 on:** Jun 25, 2018

Answer to Question 1

Increases in heart rate shorten all phases of the cardiac cycle. The most important is that the time the heart spends relaxing is less. If the length of time for ventricular relaxation is shortened, there is less time for them to fill adequately with blood. If the ventricles do not have time to fill, the following occur: the amount of blood sent to the coronary arteries is reduced, the amount of blood pumped out of the ventricles will decrease (cardiac output), and signs of myocardial ischemia may be seen.

Answer to Question 2

bipolar