Most adults with human immunodeficiency virus will exhibit which of the following laboratory values?
Higherthannormal number of CD4+ Tcells and CD8+ Tcells are normal
Lowerthannormal number of CD4+ Tcells and CD8+ Tcells are normal
Lowerthannormal number of CD4+ Tcells and higher than normal CD8+ Tcells
Higherthannormal number of CD4+ Tcells and CD8+ Tcells are low
The Correct Answer is C
Choice A reason: Higherthannormal number of CD4+ Tcells and CD8+ Tcells are normal is not a laboratory value that most adults with human immunodeficiency virus will exhibit, because it does not reflect the effect of the virus on the immune system. CD4+ Tcells and CD8+ Tcells are types of white blood cells that play a key role in the immune response. CD4+ Tcells are helper cells that activate and coordinate other immune cells, while CD8+ Tcells are cytotoxic cells that kill infected or abnormal cells. Human immunodeficiency virus infects and destroys CD4+ Tcells, which impairs the immune function and increases the risk of opportunistic infections and cancers. CD8+ Tcells are not directly affected by the virus, but they may increase in number as a compensatory mechanism to fight the infection. Therefore, most adults with human immunodeficiency virus will have lowerthannormal number of CD4+ Tcells and higher than normal CD8+ Tcells.
Choice B reason: Lowerthannormal number of CD4+ Tcells and CD8+ Tcells are normal is not a laboratory value that most adults with human immunodeficiency virus will exhibit, because it does not reflect the effect of the virus on the immune system, as explained above. Lowerthannormal number of CD4+ Tcells and CD8+ Tcells are normal may indicate a condition that affects both types of Tcells, such as aplastic anemia, chemotherapy, radiation therapy, or immunosuppressive drugs.
Choice C reason: Lowerthannormal number of CD4+ Tcells and higher than normal CD8+ Tcells is a laboratory value that most adults with human immunodeficiency virus will exhibit, because it reflects the effect of the virus on the immune system, as explained above. Lowerthannormal number of CD4+ Tcells and higher than normal CD8+ Tcells may indicate the progression of the infection and the severity of the immunodeficiency. The normal range of CD4+ Tcells is 500 to 1500 cells per microliter of blood, while the normal range of CD8+ Tcells is 150 to 1000 cells per microliter of blood.
Choice D reason: Higherthannormal number of CD4+ Tcells and CD8+ Tcells are low is not a laboratory value that most adults with human immunodeficiency virus will exhibit, because it does not reflect the effect of the virus on the immune system, as explained above. Higherthannormal number of CD4+ Tcells and CD8+ Tcells are low may indicate a condition that affects CD8+ Tcells, such as leukemia, lymphoma, or corticosteroid therapy.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A reason: A decreased level of rheumatoid factor is not seen in clients with rheumatoid arthritis. Rheumatoid factor is an antibody that is produced by the immune system and can bind to other antibodies. A high level of rheumatoid factor indicates an autoimmune disorder, such as rheumatoid arthritis.
Choice B reason: A negative rheumatoid factor is not seen in clients with rheumatoid arthritis. A negative rheumatoid factor means that the antibody is not detected in the blood. A negative rheumatoid factor does not rule out rheumatoid arthritis, but it may suggest a different type of arthritis or another condition.
Choice C reason: A positive rheumatoid factor is seen in clients with rheumatoid arthritis. A positive rheumatoid factor means that the antibody is detected in the blood. A positive rheumatoid factor is more likely to occur in clients with rheumatoid arthritis, especially during a flareup of the disease.
Choice D reason: Factor does not change is not seen in clients with rheumatoid arthritis. Rheumatoid factor can vary over time and may change depending on the activity of the disease. Rheumatoid factor may increase during a flareup and decrease during remission.
Correct Answer is C
Explanation
Choice A reason: Deeply palpating the area for rebound tenderness is not the nurse's next action, because it is inappropriate and dangerous. Deeply palpating the area for rebound tenderness is a test that involves applying and releasing pressure on the abdomen, which can elicit pain or discomfort in the presence of peritonitis or appendicitis. Deeply palpating the area for rebound tenderness is not relevant or useful for the client's complaint of pain and burning in the right calf area, which may indicate a deep vein thrombosis (DVT), which is a blood clot in the deep veins of the leg. Deeply palpating the area for rebound tenderness can also worsen the pain, damage the tissues, or dislodge the clot, which can cause pulmonary embolism, which is a lifethreatening condition.
Choice B reason: Percussing over the area for a change in tone is not the nurse's next action, because it is inappropriate and useless. Percussing over the area for a change in tone is a test that involves tapping on the chest or abdomen, which can produce different sounds depending on the density of the underlying organs or tissues. Percussing over the area for a change in tone is not relevant or useful for the client's complaint of pain and burning in the right calf area, which may indicate a deep vein thrombosis (DVT), which is a blood clot in the deep veins of the leg. Percussing over the area for a change in tone can also worsen the pain, damage the tissues, or dislodge the clot, which can cause pulmonary embolism, which is a lifethreatening condition.
Choice C reason: Comparing the circumference to the left calf is the nurse's next action, because it is appropriate and useful. Comparing the circumference to the left calf is a test that involves measuring the size of the leg, which can reveal any swelling or edema in the affected area. Comparing the circumference to the left calf is relevant and useful for the client's complaint of pain and burning in the right calf area, which may indicate a deep vein thrombosis (DVT), which is a blood clot in the deep veins of the leg. Comparing the circumference to the left calf can also help diagnose, monitor, or treat the condition, as a difference of more than 2 cm between the legs can suggest a DVT.
Choice D reason: Medicating the client for pain and reassessing in 60 minutes is not the nurse's next action, because it is inappropriate and delayed. Medicating the client for pain and reassessing in 60 minutes is an intervention that involves giving the client a painkiller and checking the response after an hour. Medicating the client for pain and reassessing in 60 minutes is not relevant or useful for the client's complaint of pain and burning in the right calf area, which may indicate a deep vein thrombosis (DVT), which is a blood clot in the deep veins of the leg. Medicating the client for pain and reassessing in 60 minutes can also mask the symptoms, delay the diagnosis, or miss the opportunity to prevent the complications, such as pulmonary embolism, which is a lifethreatening condition.
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