Author Question: A child diagnosed with a heart murmur is scheduled for an echocardiogram. Which information about ... (Read 67 times)

penguins · **on:** Jun 28, 2018

A child diagnosed with a heart murmur is scheduled for an echocardiogram. Which information about this diagnostic test does the nurse provide to the family?

A.
Allows visualization of the heart's electrical activity
B.
Gives direct pressure measurements across valves
C.
Provides more specific information than other tests
D.
Shows the location and size of a heart defect

Question 2

A nurse notes that a child has clubbed fingernails. Which laboratory finding would the nurse correlate with this assessment?

A.
Hemoglobin: 16 g/dL
B.
PaCO2: 43 mm Hg
C.
PaO2: 72 mm Hg
D.
White blood count: 8,500 mm3

jaaaaaaa · **Reply #1 on:** Jun 28, 2018

Answer to Question 1

ANS: D
An echocardiogram is a noninvasive test that can show the size and location of a heart defect. An electrocardiogram (ECG) provides visualization of the heart's electrical activity. Direct pressure measurements are obtained with cardiac catheterization. More specific information can be obtained about heart defects via a magnetic resonance angiogram or computed tomographic angiogram.

Answer to Question 2

ANS: C
Clubbing of the fingernails is associated with chronically low oxygenation. A PaO2 of 72 mm Hg is low. The other values are normal.