Asked by Clara Gorges on Jul 11, 2024
Verified
A patient's heart rate increased from 94 to 164 beats/min. What will the nurse expect?
A) Increase in diastolic filling time
B) Decrease in hemoglobin level
C) Decrease in cardiac output
D) Increase in stroke volume
Cardiac Output
The volume of blood the heart pumps through the circulatory system in one minute, an essential parameter in assessing cardiac health.
Diastolic Filling
The phase in the cardiac cycle where the heart chambers fill with blood following relaxation.
Hemoglobin Level
A measurement of the concentration of hemoglobin in a person's blood, indicating the blood's capacity to carry oxygen.
- Understand the relationship between heart rate, cardiac output, and conditions affecting preload and afterload.
Verified Answer
GK
Gouri kaushikJul 12, 2024
Final Answer :
C
Explanation :
With a sustained heart rate greater than 160 beats/min, diastolic filling time decreases, decreasing stroke volume and cardiac output. The hemoglobin level would not be affected.
Learning Objectives
- Understand the relationship between heart rate, cardiac output, and conditions affecting preload and afterload.