Welcome to ExamTopics
ExamTopics Logo
- Expert Verified, Online, Free.
Mail Us [email protected]
Menu

Unlimited Access

Get Unlimited Contributor Access to the all ExamTopics Exams!
Take advantage of PDF Files for 1000+ Exams along with community discussions and pass IT Certification Exams Easily.
Test-Prep Discussions

Exam NCLEX-RN topic 1 question 54 discussion

Actual exam question from Test Prep's NCLEX-RN
Question #: 54
Topic #: 1
[All NCLEX-RN Questions]

The primary reason that an increase in heart rate (100 bpm) detrimental to the client with a myocardial infarction (MI) is that:

  • A. Stroke volume and blood pressure will drop proportionately
  • B. Systolic ejection time will decrease, thereby decreasing cardiac output
  • C. Decreased contractile strength will occur due to decreased filling time
  • D. Decreased coronary artery perfusion due to decreased diastolic filling time will occur, which will increase ischemic damage to the myocardium
Show Suggested Answer Hide Answer
Suggested Answer: D 🗳️
(A) Decreased stroke volume and blood pressure will occur secondary to decreased diastolic filling. (B) Tachycardia primarily decreases diastole; systolic time changes very little. (C) Contractility decreases owing to the decreased filling time and decreased time for fiber lengthening. (D) Decreased O2 supply due to decreased time for filling of the coronary arteriesincreases ischemia and infarct size. Tachycardia primarily robs the heart of diastolic time, which is the primary time for coronary artery filling.
by Urchmandudu at Dec. 29, 2023, 12:21 a.m.

Comments

Chosen Answer:
This is a voting comment (?) , you can switch to a simple comment.
Switch to a voting comment New
Submit Cancel
Ray_Dee
3 weeks, 5 days ago
Answer:D
upvoted 1 times
...
Urchmandudu
4 months, 3 weeks ago
Selected Answer: D
............
upvoted 1 times
...

Get IT Certification

Unlock free, top-quality video courses on ExamTopics with a simple registration. Elevate your learning journey with our expertly curated content. Register now to access a diverse range of educational resources designed for your success. Start learning today with ExamTopics!

Start Learning for free
Community vote distribution
A (35%)
C (25%)
B (20%)
Other
Most Voted
A voting comment increases the vote count for the chosen answer by one.

Upvoting a comment with a selected answer will also increase the vote count towards that answer by one. So if you see a comment that you already agree with, you can upvote it instead of posting a new comment.

SaveCancel