A nurse is caring for a client who is scheduled for a cesarean birth based on the fetal lungs having reached maturity. Which of the following indicates that the fetal lungs are mature?
Biophysical profile score of 8
Phosphatidylglycerol (PG) absent
Lecithin/sphingomyelin (L/S) ratio of 2:1
Nonstress test is reactive
The Correct Answer is C
Choice A reason: A biophysical profile score of 8 is a good indicator of fetal well-being, but it does not measure the fetal lung maturity. It consists of five parameters: fetal breathing movements, fetal movements, fetal tone, amniotic fluid volume, and nonstress test.
Choice B reason: Phosphatidylglycerol (PG) is a phospholipid that is present in the fetal lung surfactant. Its presence indicates that the fetal lungs are mature, while its absence does not rule out the possibility of maturity.
Choice C reason: Lecithin and sphingomyelin are two phospholipids that are found in the fetal lung surfactant. The L/S ratio is the ratio of lecithin to sphingomyelin in the amniotic fluid. A ratio of 2:1 or higher indicates that the fetal lungs are mature and can produce enough surfactant to prevent respiratory distress syndrome.
Choice D reason: A nonstress test is a test that measures the fetal heart rate and its response to fetal movements. A reactive test means that the fetal heart rate increases by at least 15 beats per minute for at least 15 seconds twice in a 20-minute period. This indicates that the fetus is healthy and well-oxygenated, but it does not reflect the fetal lung maturity.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A reason: This is a correct statement, as the NST measures the fetal heart rate and its response to fetal movement. The nurse will place two belts around the client's abdomen, one to monitor the heart rate and one to monitor the contractions.
Choice B reason: This is a correct statement, as the NST usually takes 20 to 30 minutes to complete. The nurse will look for at least two accelerations of the fetal heart rate within a 20-minute period.
Choice C reason: This is a correct statement, as the NST is more likely to be reactive (normal) when the baby is active. The client may be asked to eat or drink something before the test to stimulate the baby's movement.
Choice D reason: This is an incorrect statement, as the client does not have to lie on her back during the test. Lying on the back can compress the inferior vena cava and reduce the blood flow to the placenta. The client can lie on her side or sit in a reclining chair during the test.
Correct Answer is A
Explanation
Choice A reason: HPV is a common STI that causes genital warts and can lead to cervical cancer. It can be transmitted by any sexual contact or by skin to skin contact. A vaccine is available to protect against some strains of HPV.
Choice B reason: Genital herpes is an STI that causes painful blisters and sores on the genitals. It can be transmitted by any sexual contact or by skin to skin contact. There is no vaccine for genital herpes, but antiviral medications can reduce the symptoms and frequency of outbreaks.
Choice C reason: Chlamydia is an STI that causes inflammation and discharge from the genitals. It can be transmitted by any sexual contact. There is no vaccine for chlamydia, but antibiotics can cure the infection.
Choice D reason: Gonorrhea is an STI that causes pain and discharge from the genitals. It can be transmitted by any sexual contact. There is no vaccine for gonorrhea, but antibiotics can cure the infection.
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