The patient's Hemoglobin A1C today is 8.29% and was 7.59% three months ago. The reference range is 4 to 5.99%. What is the likely diagnosis?

Diabetes Mellitus

Hypoglycemia

Hyperglycemia

Prediabetes

Answer and Explanation

The Correct Answer is A

Choice A rationale:

Hemoglobin A1C (HbA1C) is a blood test that reflects a person's average blood glucose levels over the past 2-3 months. It's considered the gold standard for diagnosing and monitoring diabetes.

An HbA1C level of 8.29% is significantly elevated above the reference range of 4-5.99%, indicating a high probability of diabetes.

The patient's HbA1C has also increased from 7.59% three months ago, suggesting a worsening of glycemic control.

Diabetes mellitus is a chronic metabolic disorder characterized by elevated blood glucose levels due to impaired insulin production or action, or both.

Common symptoms of diabetes include increased thirst, frequent urination, fatigue, blurred vision, and slow-healing wounds.

Early diagnosis and treatment of diabetes are crucial to prevent complications such as heart disease, stroke, kidney disease, nerve damage, and vision loss.

Choice B rationale:

Hypoglycemia refers to abnormally low blood glucose levels, typically below 70 mg/dL. It's often caused by excessive insulin or medication, missed meals, or strenuous exercise.

The patient's HbA1C level of 8.29% does not support a diagnosis of hypoglycemia.

Choice C rationale:

Hyperglycemia refers to abnormally high blood glucose levels, typically above 180 mg/dL. It can be caused by diabetes, stress, infection, or certain medications.

While the patient's HbA1C level does indicate hyperglycemia, it's specifically the pattern of elevated HbA1C over time that points to a diagnosis of diabetes mellitus, rather than transient hyperglycemia.

Choice D rationale:

Prediabetes is a condition where blood glucose levels are higher than normal, but not high enough to be classified as diabetes. People with prediabetes are at increased risk of developing diabetes.

The patient's HbA1C level of 8.29% is above the threshold for prediabetes, which is typically 5.7-6.4%.

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Free Nursing Study Resources

Correct Answer is ["38"]

Explanation

Here are the steps to calculate the IV flow rate:

Step 1: Calculate the volume to be infused per minute.

75 mL ÷ 30 minutes = 2.5 mL/minute

Step 2: Multiply the volume per minute by the drop factor to determine the drops per minute.

2.5 mL/minute × 15 gtt/mL = 37.5 gtt/minute

Step 3: Round the answer to the nearest whole number. The nurse should regulate the IV to deliver 38 gtt/minute.

A. Proliferation of suppressor T-cells. B. Deficiency of cytotoxic T-cells. C. Increase in B-lymphocytes and IgM. D. Destruction of helper T-cells and CD4 cells.

Correct Answer is D

Explanation

Choice A rationale:

Incorrect. Suppressor T-cells (also known as regulatory T-cells) play a role in regulating the immune response, but their proliferation is not the primary mechanism by which HIV suppresses the immune system. In fact, HIV can disrupt the function of suppressor T-cells, leading to an impaired ability to control immune responses.

Choice B rationale:

Incorrect. Cytotoxic T-cells (also known as CD8+ T-cells) are important for killing infected cells, but their deficiency is not the direct cause of immune suppression in HIV. However, HIV can indirectly lead to a deficiency of cytotoxic T-cells by disrupting their production and function.

Choice C rationale:

Incorrect. B-lymphocytes produce antibodies, and IgM is an early antibody produced in response to infection. However, an increase in B-lymphocytes and IgM is not characteristic of HIV infection. In fact, HIV can impair B-cell function, leading to decreased antibody production.

Choice D rationale:

Correct. HIV primarily targets and destroys helper T-cells (also known as CD4+ T-cells). These cells play a crucial role in coordinating the immune response by activating other immune cells, such as cytotoxic T-cells and B-cells. The depletion of helper T-cells leads to a progressive weakening of the immune system, rendering the body vulnerable to opportunistic infections and cancers.

Specific mechanisms of CD4+ T-cell destruction by HIV:

Direct infection and lysis: HIV can directly infect CD4+ T-cells and replicate within them, eventually leading to the death of the infected cells.

CD4+ T-cell apoptosis: HIV can induce programmed cell death (apoptosis) in CD4+ T-cells through various mechanisms, including the activation of pro-apoptotic pathways and the disruption of anti-apoptotic signals.

Immune dysregulation: HIV infection can also dysregulate the immune system, leading to chronic inflammation and immune activation. This can further contribute to CD4+ T-cell depletion and dysfunction.

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The patient's Hemoglobin A1C today is 8.29% and was 7.59% three months ago. The reference range is 4 to 5.99%. What is the likely diagnosis?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

The healthcare provider prescribes an IV solution of clindamycin 850 mg in 75 ml of D5W to infuse over 30 minutes. The drop factor is 15 gtt/mL. The nurse should regulate the IV to deliver how many gtt/minute? (Enter numeric value only. If rounding is required, round to the nearest whole number.)

Correct Answer is ["38"]

Explanation

The nurse is preparing a teaching plan for a group of clients who were found to be HIV positive within the last year. Members of the group express an interest in learning about the pathology of AIDS.The nurse should explain that HIV acts in which way to suppress the immune system?

Correct Answer is D

Explanation

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