The atrial kick becomes important to ventricular filling during which of the following?
a. Atrial flutter c. Ventricular asystole
b. Atrial fibrillation d. Ventricular tachy-cardia
ANS: D
The atrial kick occurs just before the beginning of ventricular systole. Contraction of the atria normally contributes only a small amount of blood to ventricular filling. However, it can contrib-ute a significant amount of blood to ventricular filling if the heart rate is increased and the period of diastasis is reduced. This occurs during ventricular tachycardia, because the higher heart rate results in a reduction in the volume of blood that passively enters the ventricle during atrial dias-tole.
You might also like to view...
An individual’s right to make decisions is ______________.
Fill in the blank(s) with the appropriate word(s).
Which of the following medical conditions can fluoride be effective in treating?
a. shingles b. osteoporosis c. fractures d. hepatitis
Assign the appropriate clinical service classification for percutaneous transhepatic liver biopsy followed by resection of the liver.
A. Medicine B. Surgical C. Obstetrics D. Newborn
When measuring liquid medication, you should measure from the lowest level of the meniscus
Indicate whether the statement is true or false