MUSCLE
CARDIAC MUSCLE
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
What is a scientific term for changing the rate?
|
|
Inotropism
|
|
|
Dromotropy
|
|
|
Chronotropism
|
|
|
Lustropy
|
Explanation:
Detailed explanation-1: -Chronotropic incompetence is defined as an inappropriate increase in heart rate in response to changing metabolic needs during activity.
Detailed explanation-2: -Inotropic – affects contractility. Chronotropic – affects heart rate (increase or decrease) Positive chronotropic drugs increase heart rate. Negative chronotropic drugs decrease the heart rate.
Detailed explanation-3: -Adding an atrial lead in a patient in complete AV block and VVI pacing is the most satisfactory way to correct chronotropic incompetence in some patients. Rate-adaptive sensors include motion sensors, respiration sensors, QT interval, and right ventricular contractility.
There is 1 question to complete.