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 A
Explanation
Choice A reason: According to the CDC, nearly half (46%) of all new STDs occur among people between the ages of 15-24¹. This age group also has the highest rates of chlamydia, gonorrhea, and syphilis infections compared to other age groups. Some factors that contribute to this high burden of STDs among young people are biological, behavioral, and social.
Choice B reason: This is incorrect. The age group of 51-60 years old has lower rates of STD infection than the age group of 15-24 years old. According to the CDC, the reported rates of chlamydia, gonorrhea, and syphilis among 51-60 year olds in 2020 were 59.8, 54.7, and 12.4 per 100,000 population, respectively. These rates are much lower than the rates among 15-24 year olds, which were 1,583.3, 1,021.9, and 45.5 per 100,000 population, respectively.
Choice C reason: This is incorrect. The age group of 25-35 years old has lower rates of STD infection than the age group of 15-24 years old. According to the CDC, the reported rates of chlamydia, gonorrhea, and syphilis among 25-35 year olds in 2020 were 1,017.9, 1,015.6, and 66.9 per 100,000 population, respectively. These rates are lower than the rates among 15-24 year olds, which were 1,583.3, 1,021.9, and 45.5 per 100,000 population, respectively.
Choice D reason: This is incorrect. The age group of 36-50 years old has lower rates of STD infection than the age group of 15-24 years old. According to the CDC, the reported rates of chlamydia, gonorrhea, and syphilis among 36-50 year olds in 2020 were 316.6, 337.9, and 27.9 per 100,000 population, respectively. These rates are lower than the rates among 15-24 year olds, which were 1,583.3, 1,021.9, and 45.5 per 100,000 population, respectively.
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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