Comprehensive Perinatal and Pediatric Respiratory Care CH.16 GRADED A+ 2023 ATESTED
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Course
Comprehensive perinatal & pediatric respiratory
Institution
Comprehensive Perinatal & Pediatric Respiratory
Explain why x-rays alone cannot be used for a differential diagnosis correct answers The disease itself cannot be seen. An x-ray should be used to provide an explanation for signs and symptoms identified by a clinical examination.
How does the heart differ in an AP CXR compared to a PA view? cor...
Comprehensive Perinatal and Pediatric Respiratory
Care CH.16 GRADED A+ 2023 ATESTED
Explain why x-rays alone cannot be used for a differential diagnosis correct answers The disease itself
cannot be seen. An x-ray should be used to provide an explanation for signs and symptoms identified by
a clinical examination.
How does the heart differ in an AP CXR compared to a PA view? correct answers The heart will appear
larger on an AP view because the heart is more anterior in the body
How is an enlarged glottis characterized? correct answers Supraglottic swelling seen on a lateral CXR;
"thumb sign"
Describe the basic mechanisms of how a CXR is taken correct answers 1. A film that sensitive to x-rays is
placed on the
opposite side of the body from the "camera"
2. the x-rays are aimed through the desired part of
the body
3. The x-rays pass through the exposed film, while
others are blocked from passing through
4. The film is developed and a transparent picture
is obtained
List and describe the 4 densities found on an x-ray correct answers 1. Air (black)-rays pass through
2. Bone (white)- absorb most rays
3. Fluid (gray)-partially absorb rays
4. Tissue (grayer)-partially absorb rays
Discuss the diagnostic usefulness and limitations of x-rays correct answers Usefulness- Cannot be used
to diagnose disease in neonates; use exams, labs, and clinical signs. Radiographs are used to confirm
diagnosis or differentiate between diseases with similar signs and symptoms.
Limitations- limited by artifact, improper technique, or patient movement.
How does the position of the carina differ in neonates than adults? correct answers It is higher, located
near the level of the 3rd vertebrae and by age 10 near the level of the 5th vertebrae.
Where is the thymus located and how is identified on a CXR? correct answers Located from the lower
edge of the thyroid gland to near the 4th rib. It is triangular shaped and is called a "sail sign" on a CXR.
What is the systemic approach when reading a CXR? correct answers 1. Confirm patient and date
2. Confirm orientation; PT's left side should be on
your right
3. Check quality; over-under exposed
4. Confirm proper PT positioning; rotation
5. Determine if in inspiration or expiration
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