The nurse should know that once human immunodeficiency virus (HIV) enters the body, seroconversion to HIV positivity usually occurs within:
6 to 10 days
6 to 12 weeks
6 months
10 to 14 weeks
The Correct Answer is B
Choice A reason: This is too short of a time frame for seroconversion to occur. Seroconversion is the process of developing antibodies to HIV, which can be detected by a blood test. It usually takes several weeks for the immune system to produce enough antibodies to be measurable.
Choice B reason: This is the typical time frame for seroconversion to occur. Most people will develop antibodies to HIV within 6 to 12 weeks after exposure. However, some people may take longer, up to 6 months or more.
Choice C reason: This is the upper limit of the time frame for seroconversion to occur. Some people may have a delayed antibody response to HIV, especially if they have a weakened immune system or take antiretroviral drugs. Therefore, it is recommended to repeat the HIV test after 6 months of exposure to confirm the diagnosis.
Choice D reason: This is an arbitrary time frame that does not reflect the average or the range of seroconversion. It is neither too short nor too long, but it is not accurate.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A reason: Gonorrhea is incorrect because it is not the infection described in the question. It is a bacterial infection that spreads through any form of unprotected sex, but it does not have stages of symptoms or affect the heart, eyes, and brain. It can cause pain, discharge, and inflammation in the genitals, anus, or throat. It can be treated with antibiotics.
Choice B reason: Syphilis is correct because it is the infection described in the question. It is a bacterial infection that spreads through any form of unprotected sex and by skin contact. It has stages of symptoms, such as sores, rashes, fever, and fatigue. If untreated, it can affect the heart, eyes, and brain, causing serious complications. It can be treated with antibiotics.
Choice C reason: Chlamydia is incorrect because it is not the infection described in the question. It is a bacterial infection that spreads through any form of unprotected sex, but it does not have stages of symptoms or affect the heart, eyes, and brain. It often causes no symptoms, but it can cause pain, discharge, and bleeding in the genitals or rectum. It can be treated with antibiotics.
Choice D reason: Trichomoniasis is incorrect because it is not the infection described in the question. It is a parasitic infection that spreads through any form of unprotected sex, but it does not have stages of symptoms or affect the heart, eyes, and brain. It can cause itching, burning, and odor in the genitals. It can be treated with antiparasitic drugs.
Correct Answer is C
Explanation
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.
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