How it Works
Try Naxlex NCLEX-RN (Free-Trial)

Which test for HIV is used primarily as a confirmatory test rather than a generalized screening test?

A.

Enzyme immunoassay.

B.

Western Blot.

C.

White blood cell differential.

D.

CD4+ cell count.

Answer and Explanation

The Correct Answer is B

A. Enzyme immunoassay. The enzyme immunoassay (EIA), also known as the ELISA test, is used as a primary screening test for HIV. If the EIA test is positive, a confirmatory test, such as the Western Blot, is performed to ensure accuracy.

B. Western Blot. The Western Blot is a confirmatory test for HIV used to verify positive results from an initial screening test. It detects specific HIV antibodies and is highly specific, reducing the likelihood of false positives.

C. White blood cell differential. A white blood cell (WBC) differential assesses the overall immune response but does not diagnose HIV. While some HIV patients may show low WBC counts, this test is not specific for HIV infection.

D. CD4+ cell count. CD4+ cell count is used to monitor disease progression and immune function in HIV-positive patients, but it is not a confirmatory test for diagnosing HIV. A low CD4+ count suggests HIV progression toward AIDS rather than initial diagnosis.


Get 100+ Naxlex Exit Exams for $79 Try Naxlex NCLEX-RN (14 Day Free-Trial)

Naxlex Comprehensive Predictor Exams

Free Nursing Study Resources

Related Questions

Correct Answer is {"dropdown-group-1":"B","dropdown-group-2":"B"}

Explanation

Rationale:

  1. Calculate total fat calories for each day:
    • Day 1: 24×38=91224 \times 38 = 912 kJ
    • Day 2: 22×38=83622 \times 38 = 836 kJ
    • Day 3: 23×38=87423 \times 38 = 874 kJ
  2. Convert total daily calories to kJ:
    • Day 1: 3,200×4.184=13,388.83,200 \times 4.184 = 13,388.8 kJ
    • Day 2: 2,980×4.184=12,471.32,980 \times 4.184 = 12,471.3 kJ
    • Day 3: 3,310×4.184=13,841.03,310 \times 4.184 = 13,841.0 kJ
  3. Calculate fat percentage:
    • Day 1: (912/13388.8)×100=18.2%
    • Day 2: (836/12471.3)×100=17.1%
    • Day 3: (874/13841.0)×100=17.3%

Average fat percentage: (18.2+17.1+17.3)/3=17.5%

  1. Interpretation:
    • The recommended fat intake range is 20-35% of total calories.
    • The client's fat intake is 14-19%, which is below the recommended range.
    • The client should increase his fat intake to meet nutritional needs.

Correct Answer is A

Explanation

A. Accessibility to trauma care. In rural communities, access to trauma care is critical because emergency medical services (EMS) response times are often delayed due to long travel distances. Without nearby trauma centers, patients with life-threatening injuries, such as those from motor vehicle accidents or farm-related injuries, face higher mortality and morbidity rates. Ensuring rapid access to trauma care significantly improves survival outcomes.
B. Family planning center. While family planning services are important for reproductive health, they are not as immediately life-saving as access to trauma care in an emergency.
C. Annual health fair. Health fairs provide preventive education and screenings, which are beneficial but do not address immediate, life-threatening medical needs.
D. Weather-related disaster plan. While a disaster plan is important for emergency preparedness, trauma care is a more immediate and ongoing concern in rural settings, where high-risk injuries require timely medical intervention.

Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.

Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today

Register