Exam (elaborations)
Chapter 23. The Child with Cardiovascular Dysfunction
- Course
- Pediatric nursing
- Institution
- Baylor College Of Medicine
Chapter 23. The Child with Cardiovascular Dysfunction
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Chapter 23. The Child with Cardiovascular DysfunctionMULTIPLE CHOICE
,1. What term is defined as the volume of blood ejected by the heart in 1 minute?
a. Afterload
b. Cardiac cycle
c. Stroke volume
d. Cardiac output
ANS: D
Cardiac output is defined as the volume of blood ejected by the heart in 1 minute. Cardiac output
= Heart rate x Stroke volume. Afterload is the resistance against which the ventricles must pump
when ejecting blood (ventricular ejection). A cardiac cycle is the sequential contraction and
relaxation of both the atria and ventricles. Stroke volume is the amount of blood ejected by the
heart in any one contraction.
DIF: Cognitive Level: Understanding REF: dl. 1254 TOP: Nursing Process: Diagnosis
MSC: Client Needs: Physiological Integrity
2. A chest radiography examination is ordered for a child with suspected cardiac problems.
The childs parent asks the nurse, What will the x-ray show about the heart? The nurses
response should be based on knowledge that the radiograph provides which information?
a. Shows bones of the chest but not the heart
b. Evaluates the vascular anatomy outside of the heart
, c. Shows a graphic measure of electrical activity of the heart
d. Supplies information on heart size and pulmonary blood flow
patterns ANS: D
Chest radiographs provide information on the size of the heart and pulmonary blood flow
patterns. The bones of the chest are visible on chest radiographs, but the heart and blood vessels
are also seen. Magnetic resonance imaging is a noninvasive technique that allows for evaluation
of vascular anatomy outside of the heart. A graphic measure of electrical activity of the heart is
provided by electrocardiography.
DIF: Cognitive Level: Understanding REF: dl. 1256
TOP: Nursing Process: Assessment MSC: Client Needs: Physiological Integrity
3. A 6-year-old child is scheduled for a cardiac catheterization. What consideration is most
important in planning preoperative teaching?
a. Preoperative teaching should be directed at his parents because he is too young to understand.
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