To detect human immunodeficiency virus (HIV), most laboratory tests focus on the:

CD4 counts

Virus

HIV antibodies

CD8 counts

Answer and Explanation

The Correct Answer is C

Choice A reason: CD4 counts are not used to detect HIV, but to monitor the progression of the infection and the immune system status. CD4 cells are a type of white blood cell that HIV targets and destroys. A normal CD4 count ranges from 500 to 1,500 cells per microliter of blood. A low CD4 count indicates a high risk of opportunistic infections and AIDS.

Choice B reason: Virus is a vague term that does not specify what kind of virus is being detected. HIV is a type of virus that belongs to the retrovirus family. It is difficult to detect the virus itself, as it hides inside the host cells and has a low concentration in the blood. Therefore, most laboratory tests focus on the antibodies that the body produces in response to the virus.

Choice C reason: HIV antibodies are the most common way to detect HIV, as they are produced by the immune system to fight the virus. Antibodies are proteins that bind to specific antigens (foreign substances) and mark them for destruction. HIV antibodies can be detected by a blood test, a saliva test, or a rapid test. However, antibodies may take several weeks to develop after exposure, so a negative test does not rule out the possibility of infection.

Choice D reason: CD8 counts are not used to detect HIV, but to monitor the immune system response and the viral load. CD8 cells are a type of white blood cell that kill infected cells and secrete antiviral substances. A high CD8 count indicates a strong immune response and a low viral load. A low CD8 count indicates a weak immune response and a high viral load.

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Correct Answer is C

Explanation

Choice A reason: Infection is not a common cause of IUGR, as most infections do not cross the placenta and affect the fetal growth. However, some infections such as cytomegalovirus, rubella, or toxoplasmosis can cause congenital anomalies and IUGR.

Choice B reason: Previous preterm birth is not a direct cause of IUGR, as it does not affect the current pregnancy. However, it may indicate an underlying maternal or fetal condition that could increase the risk of IUGR, such as cervical incompetence, placental abruption, or preeclampsia.

Choice C reason: Utero-placental insufficiency is the most common cause of IUGR, as it reduces the blood flow and oxygen delivery to the fetus. It can result from maternal factors such as hypertension, diabetes, smoking, or drug abuse, or from placental factors such as placenta previa, placental infarction, or cord compression.

Choice D reason: Chronic hypertension is a risk factor for IUGR, as it can lead to utero-placental insufficiency and fetal hypoxia. However, it is not the only cause of IUGR, as other factors can also affect the placental function and fetal growth.

A. 15-24 years old B. 51-60 years old C. 25-35 years old D. 36-50 years old

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.

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To detect human immunodeficiency virus (HIV), most laboratory tests focus on the:

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Naxlex Comprehensive Predictor Exams

Early detection allows for antenatal management for better neonatal outcomes. Your patient is 32 weeks gestation, gravida 5 para 4 and after a routine ultrasound she is told her baby is very small and has IUGR. She asks you what causes this and you tell her:

Correct Answer is C

Explanation

What age group has the highest rates of STD infection?

Correct Answer is A

Explanation

Symptoms include bumps in and around the genitals. Spreads through any sexual contact (anal, oral, and vaginal), and also by skin to skin contact. A vaccine exists to help prevent this disease. Which of the following STIs is this?

A nurse is caring for a client who is at 22 weeks of gestation and has been unable to control her gestational diabetes mellitus with diet and exercise. The nurse should anticipate a prescription from the provider for which of the following medications for the client?

When teaching a group of students about chlamydia, which of the following points is most important for the healthcare provider to emphasize?

Which of the following is a bacterial infection that spreads through any form of unprotected sex and by skin contact? Typically, it has stages of increasingly serious symptoms. If untreated, it may affect the heart, eyes, and brain. It can be treated with antibiotics.

The drug of choice for syphilis treatment is

Iron deficiency anemia often occurs during pregnancy as a result of

A nurse is teaching a client who is at 23 weeks of gestation about immunizations. Which of the following statements should the nurse include in the teaching?