This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: A patient's ECG was abnormal and the physician determined that a pacemaker was necessary. Which of ... (Read 75 times)

Yolanda

  • Hero Member
  • *****
  • Posts: 757
on: Aug 20, 2018
A patient's ECG was abnormal and the physician determined that a pacemaker was necessary. Which of the following best describes the normal electrical functioning of the heart?
 a. Electrical activity is initiated by the SA node and depolarization is carried from the ventricle by the AV node.
  b. Electrical activity is initiated by the AV node and depolarization is carried from the atria by the SA node.
  c. As the resting membrane potential decreases the SA node will reach its depolarization threshold.
  d. As the resting membrane potential increases the AV node will reach its depolarization threshold.

Question 2

Relaxation of the ventricle as it fills with blood is referred to as
 a. diastole.
  b. systole.
  c. tachycardia.
  d. arrhythmia.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Ashley I

  • Sr. Member
  • ****
  • Posts: 344
Reply #1 on: Aug 20, 2018
Answer to Question 1

c

Answer to Question 2

a


Yolanda

  • Member
  • Posts: 757
Reply 2 on: Aug 20, 2018
Great answer, keep it coming :)

Chelseyj.hasty

  • Member
  • Posts: 319
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

Persons who overdose with cardiac glycosides have a better chance of overall survival if they can survive the first 24 hours after the overdose.

Did you know?

There used to be a metric calendar, as well as metric clocks. The metric calendar, or "French Republican Calendar" divided the year into 12 months, but each month was divided into three 10-day weeks. Each day had 10 decimal hours. Each hour had 100 decimal minutes. Due to lack of popularity, the metric clocks and calendars were ended in 1795, three years after they had been first marketed.

Did you know?

According to research, pregnant women tend to eat more if carrying a baby boy. Male fetuses may secrete a chemical that stimulates their mothers to step up her energy intake.

Did you know?

Studies show that systolic blood pressure can be significantly lowered by taking statins. In fact, the higher the patient's baseline blood pressure, the greater the effect of statins on his or her blood pressure.

Did you know?

Before a vaccine is licensed in the USA, the Food and Drug Administration (FDA) reviews it for safety and effectiveness. The CDC then reviews all studies again, as well as the American Academy of Pediatrics and the American Academy of Family Physicians. Every lot of vaccine is tested before administration to the public, and the FDA regularly inspects vaccine manufacturers' facilities.

The nurse needs to note the source of the patient health history The nurse needs to note the source of the patient health history
Magnetic resonance imaging (MRI). The MRI lab includes the scanning instrument and a computer statio Magnetic resonance imaging (MRI). The MRI lab includes the scanning instrument and a computer statio
Chest X-ray. A physician is examining chest X-rays with the aid of a plastic model of the bronchial Chest X-ray. A physician is examining chest X-rays with the aid of a plastic model of the bronchial
Patient wearing an abularm Patient wearing an abularm
The medical assistant escorts the patient into the examination room. The medical assistant escorts the patient into the examination room.
A patient’s cognitive ability depends on his or her psychologic status, which is influenced by ... A patient’s cognitive ability depends on his or her psychologic status, which is influenced by ...
Video: Homeostasis (range of body conditions, normal limits, mild stresses & severe stresses)

For a complete list of videos, visit our video library