Nokea
An amniocentesis is scheduled for a pregnant client in the third trimester. The nurse informs the client that the most common indication for amniocentesis during the third trimester is for which reason?
- A. Determination of whether alpha-fetoprotein (AFP) is present in the amniotic fluid
- B. Checking the amniotic fluid for intrauterine infection
- C. Determination of fetal lung maturity
- D. Checking the fetal cells for chromosomal abnormalities
Correct Answer: C
Rationale: The most common indication for amniocentesis in the third trimester is the determination of fetal lung maturity. This assessment is essential to evaluate the fetus's readiness for extrauterine life. Checking for alpha-fetoprotein (AFP) in the amniotic fluid is more commonly associated with midtrimester amniocentesis to identify chromosomal abnormalities. Assessing for intrauterine infection is not a primary reason for amniocentesis in the third trimester. While checking fetal cells for chromosomal abnormalities is a common indication for midtrimester amniocentesis, it is not the most common indication in the third trimester.
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A nurse is preparing to assess a client for the presence of the Tinel sign. Which action does the nurse take to elicit this sign?
- A. Testing for the strength of each muscle joint
- B. Percussing at the location of the median nerve
- C. Checking for repetitive movements in the joints
- D. Asking the client to flex the wrist 90 degrees while holding the hands back to back
Correct Answer: B
Rationale: The Tinel sign is elicited by percussing at the location of the median nerve at the wrist. In carpal tunnel syndrome, this test can produce burning and tingling along the nerve's distribution. Choices A, C, and D are incorrect. Testing for the strength of each muscle joint and checking for repetitive movements in the joints involve different assessments unrelated to the Tinel sign. Asking the client to flex the wrist 90 degrees while holding the hands back to back is associated with the Phalen test, which is another evaluation for carpal tunnel syndrome.
A nurse assisting with data collection is preparing to auscultate for bowel sounds. The nurse should use which technique?
- A. Begin in the right lower quadrant.
- B. Use the bell end of the stethoscope.
- C. Hold the stethoscope lightly against the skin.
- D. Listen for at least 5 minutes before deciding that bowel sounds are absent.
Correct Answer: A
Rationale: To auscultate for bowel sounds, the nurse should use the diaphragm end piece of the stethoscope as bowel sounds are relatively high pitched. The stethoscope should be held lightly against the skin to avoid stimulating more bowel sounds. The nurse should begin in the right lower quadrant at the ileocecal valve, where bowel sounds are normally present. It is recommended to listen for 5 minutes before deciding that bowel sounds are absent to ensure a thorough assessment. Choice B is incorrect because the bell end is used for low-pitched sounds such as heart sounds. Choice C is incorrect as holding the stethoscope firmly and deeply can cause unnecessary bowel sound stimulation. Choice D is incorrect as listening for 1 minute is insufficient to determine the presence or absence of bowel sounds.
A hepatitis B screen is performed on a pregnant client, and the results indicate the presence of antigens in the client's blood. On the basis of this finding, the nurse makes which determination?
- A. Hepatitis immune globulin and vaccine will be administered to the newborn infant soon after birth
- B. The results are negative.
- C. The results indicate that the mother does not have hepatitis B
- D. The client needs to receive the hepatitis B series of vaccines.
Correct Answer: A
Rationale: A hepatitis B screen is performed to identify antigens in maternal blood. If antigens are present, it indicates that the mother is a carrier, and the newborn will need to receive hepatitis immune globulin and vaccine soon after birth to prevent transmission. Therefore, choice A is correct. Choices B and C are incorrect because the presence of antigens indicates a positive result, not a negative one or the absence of hepatitis B in the mother. Choice D is incorrect as it suggests the client needs to receive the hepatitis B series of vaccines, which is not the immediate action required when antigens are found in the maternal blood.
A nurse preparing to examine a client’s eyes plans to perform a confrontation test. The nurse tells the client that this test measures which aspect of vision?
- A. Near vision
- B. Color vision
- C. Distant vision
- D. Peripheral vision
Correct Answer: D
Rationale: The correct answer is D: Peripheral vision. The confrontation test is a gross measure of peripheral vision. It compares the client’s peripheral vision with the nurse’s, assuming that the nurse’s vision is normal. During the test, the nurse positions themselves at eye level with the client, about 2 feet away, and directs the client to cover one eye with an opaque card. The nurse covers the eye opposite the client’s covered one and slowly moves a target (like a pencil) from the periphery in several directions. The client is asked to indicate when they see the target, which should coincide with when the nurse sees it. Near vision is tested using a handheld vision screener with various sizes of print, color vision with the Ishihara test, and distant vision with a Snellen chart. Therefore, choices A, B, and C are incorrect as they do not measure peripheral vision, which is the focus of the confrontation test.
At what age are yearly mammograms recommended to start?
- A. Yearly mammograms are recommended starting at age 25.
- B. Yearly mammograms are recommended starting at age 40.
- C. Yearly mammograms are not necessary unless there is a family history of breast cancer.
- D. Yearly mammograms are recommended starting at age 20 and continuing until menopause begins.
Correct Answer: B
Rationale: The correct answer is B. The American Cancer Society recommends yearly mammograms starting at age 40 and continuing for as long as a woman is in good health. Clinical breast examination should be done about every 3 years for women in their 20s and 30s and every year for women age 40 and older. Women should know how their breasts normally look and feel and report any breast change promptly to the healthcare provider. Breast self-examination should be done monthly starting when a woman is in her 20s. Choice A is incorrect as mammograms are not recommended to start at age 25. Choice C is incorrect as yearly mammograms are still recommended even without a family history of breast cancer. Choice D is incorrect as the recommended age for starting yearly mammograms is 40, not 20.