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

Author Question: A patient's heart rate increased from 80 bpm to 160 bpm. The nurse knows that what will follow is ... (Read 80 times)

Deast7027

  • Hero Member
  • *****
  • Posts: 538
on: Jul 23, 2018
A patient's heart rate increased from 80 bpm to 160 bpm. The nurse knows that what will follow is a(n)
 
  a. Increase in diastolic filling time.
  b. Decrease in cardiac output.
  c. Increase in stroke volume.
  d. Increase in contractility.

Question 2

Myocardial blood flow is unidirectional; the nurse knows that the correct pathway is which of the following?
 
  a. Right atrium, right ventricle, left ventricle, left atrium
  b. Right atrium, left atrium, right ventricle, left ventricle
  c. Right atrium, right ventricle, left atrium, left ventricle
  d. Right atrium, left atrium, left ventricle, right ventricle


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

ApricotDream

  • Sr. Member
  • ****
  • Posts: 336
Reply #1 on: Jul 23, 2018
Answer to Question 1

ANS: B
An increased heart rate would decrease the diastolic filling time and stroke volume, thus decreasing overall cardiac output. A decrease in cardiac output results from decreased stroke volume and/or decreased heart rate. An increase in stroke volume and contractility would cause a decrease in heart rate to maintain cardiac output.

Answer to Question 2

ANS: C
Unoxygenated blood flows through the venae cavae into the right atrium, where it is pumped down to the right ventricle; the blood is then pumped out the pulmonary artery and is returned oxygenated via the pulmonary vein to the left atrium, where it flows to the left ventricle and is pumped out to the rest of the body via the aorta.


Deast7027

  • Member
  • Posts: 538
Reply 2 on: Jul 23, 2018
Gracias!

lindahyatt42

  • Member
  • Posts: 322
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

The top 10 most important tips that will help you grow old gracefully include (1) quit smoking, (2) keep your weight down, (3) take supplements, (4) skip a meal each day or fast 1 day per week, (5) get a pet, (6) get medical help for chronic pain, (7) walk regularly, (8) reduce arguments, (9) put live plants in your living space, and (10) do some weight training.

Did you know?

Patients who cannot swallow may receive nutrition via a parenteral route—usually, a catheter is inserted through the chest into a large vein going into the heart.

Did you know?

More than 20 million Americans cite use of marijuana within the past 30 days, according to the National Survey on Drug Use and Health (NSDUH). More than 8 million admit to using it almost every day.

Did you know?

Although the Roman numeral for the number 4 has always been taught to have been "IV," according to historians, the ancient Romans probably used "IIII" most of the time. This is partially backed up by the fact that early grandfather clocks displayed IIII for the number 4 instead of IV. Early clockmakers apparently thought that the IIII balanced out the VIII (used for the number 8) on the clock face and that it just looked better.

Did you know?

Nearly all drugs pass into human breast milk. How often a drug is taken influences the amount of drug that will pass into the milk. Medications taken 30 to 60 minutes before breastfeeding are likely to be at peak blood levels when the baby is nursing.

The chain of infection: preventative measures follow each link of the chain. The chain of infection: preventative measures follow each link of the chain.
Leukemia. A blood smear from a patient suffering from leukemia demonstrates the abundance of enlarge Leukemia. A blood smear from a patient suffering from leukemia demonstrates the abundance of enlarge
Neurohumoral effects of heart failure Neurohumoral effects of heart failure
Nurse Sandy Nurse Sandy
Increased acidity inhibits the growth of coral and other carbonate shell-building organisms Increased acidity inhibits the growth of coral and other carbonate shell-building organisms
Vessels of the heart: Posterior Vessels of the heart: Posterior
Video: Pressure volume relationships - Normal inspiration and expiration

For a complete list of videos, visit our video library