A patient is scheduled for a barium enema, an intravenous pyelogram (IVP), and thyroid function tests. In which order should the tests be done?
a. IVP, barium enema, thyroid function tests
b. thyroid function tests, barium enema, IVP
c. thyroid function tests, IVP, barium enema
d. barium enema, IVP, thyroid function tests
C
Certain radiologic tests will require a contrast medium that could interfere with other diagnostic studies. Barium and iodine are commonly used contrast media. Laboratory blood samples measuring the thyroid function should be drawn before an intravenous pyelogram where radioactive iodine dye is administered. If the patient needs both an IVP and barium enema, the IVP is done first because the barium is likely to decrease the visualization of the kidneys.
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The nurse is examining a 5-year-old boy. Which of the following signs or symptoms is a reliable first indication of respiratory illness in children?
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a. "Antibodies produced in response to infection and filtered out by the placenta may be identified through this procedure." b. "Cells that are shed by the baby are eliminated through the chorionic villi." c. "Specific proteins are produced by the chorionic villi that can signal problems." d. "The chromosomes taken from the chorionic villi are the same as the baby's chromosomes."
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