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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A reason: Primary intention is the correct answer, because it is the type of wound healing that occurs when the wound edges are approximated and closed with sutures, staples, or glue. Primary intention is the fastest and most effective way of wound healing, as it minimizes tissue loss, infection, and scarring.
Choice B reason: Secondary intention is not the correct answer, because it is the type of wound healing that occurs when the wound edges are not approximated and left open to heal by granulation, contraction, and epithelialization. Secondary intention is the slowest and least effective way of wound healing, as it results in more tissue loss, infection, and scarring.
Choice C reason: Tertiary intention is not the correct answer, because it is the type of wound healing that occurs when the wound edges are initially left open and then closed with sutures, staples, or glue after a period of time. Tertiary intention is a delayed form of primary intention, and it is used when the wound is contaminated, infected, or requires drainage.
Choice D reason: Binary intention is not the correct answer, because it is not a real term for wound healing. Binary intention is a madeup term that does not describe any specific process or outcome of wound healing.
Correct Answer is C
Explanation
Choice A reason: This is not the correct answer because opioids are a class of medications that act on the opioid receptors in the brain and spinal cord to reduce pain perception and emotional response. Opioids do not have a direct effect on tissue inflammation or bone healing, but they can cause side effects such as constipation, nausea, sedation, respiratory depression, and addiction.
Choice B reason: This is not the correct answer because anticoagulants are a class of medications that prevent or reduce the formation of blood clots by interfering with the clotting factors or platelets. Anticoagulants do not have a direct effect on tissue inflammation or bone healing, but they can increase the risk of bleeding and hematoma formation, which can impair the blood supply and oxygen delivery to the injured tissues.
Choice C reason: This is the correct answer because NSAIDs are a class of medications that inhibit the enzyme cyclooxygenase (COX), which is involved in the synthesis of prostaglandins, which are inflammatory mediators that cause pain, swelling, and fever. NSAIDs can decrease tissue inflammation and pain, but they can also delay bone healing by reducing the formation of osteoblasts, which are cells that build new bone tissue.
Choice D reason: This is not the correct answer because narcotics are another term for opioids, which are a class of medications that act on the opioid receptors in the brain and spinal cord to reduce pain perception and emotional response. Narcotics do not have a direct effect on tissue inflammation or bone healing, but they can cause side effects such as constipation, nausea, sedation, respiratory depression, and addiction.
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