Nursing Elites

1. At what age will vision be 20/20 in children?

• A. 4 years old
• B. 5 years old
• C. 6 years old
• D. 7 years old

Correct answer: C

Rationale: The correct answer is 6 years old. At this age, children typically have the potential for 20/20 vision. This is considered the standard age for achieving optimal vision clarity. Choices A, B, and D are incorrect as they are not typically associated with the age at which children achieve 20/20 vision.

2. The factor that most determines drug distribution is:

• A. vascular perfusion of the tissue or organ.
• B. salt form.
• C. drug interactions.
• D. steady state.

Correct answer: A

Rationale: The correct answer is 'vascular perfusion of the tissue or organ.' Drug distribution is primarily determined by how well the circulatory system delivers the drug to various tissues and organs. Adequate perfusion ensures proper distribution of the drug throughout the body. While the salt form (choice B), drug interactions (choice C), and steady state (choice D) can influence drug efficacy and metabolism, they are not as crucial as vascular perfusion for the initial distribution of a drug.

3. A client has been diagnosed with Disseminated Intravascular Coagulation (DIC) and transferred to the medical intensive care unit (ICU) following an acute bleeding episode. In the ICU, continuous Heparin drip therapy is initiated. Which of the following assessment findings indicates a positive response to Heparin therapy?

• A. increased platelet count
• B. increased fibrinogen
• C. decreased fibrin split products
• D. decreased bleeding

Correct answer: B

Rationale: In the context of DIC, effective Heparin therapy aims to halt the process of intravascular coagulation. One of the indicators of a positive response to Heparin therapy is an increase in fibrinogen levels. Heparin interferes with the conversion of fibrinogen to fibrin by thrombin. This interruption helps increase the availability of fibrinogen. While the platelet count may increase due to improved clotting, the primary focus of Heparin therapy is on fibrinogen. Fibrin split products are expected to decrease as the coagulation cascade is controlled. Although decreased bleeding is an ultimate goal, the immediate effect of Heparin is not directly on bleeding but on the coagulation process.

4. A client comes to the clinic for assessment of his physical status and guidelines for starting a weight-reduction diet. The client's weight is 216 pounds and his height is 66 inches. The nurse identifies the BMI (body mass index) as:

• A. Within normal limits, so a weight-reduction diet is unnecessary.
• B. Lower than normal, so education about nutrient-dense foods is needed.
• C. Indicating obesity because the BMI is 35.
• D. Indicating overweight status because the BMI is 27.

Correct answer: C

Rationale: Obesity is defined by a BMI of 30 or more with no co-morbid conditions. Body Mass Index (BMI) is calculated by utilizing a chart or nomogram that plots height and weight. In this case, the client's BMI is calculated as 35, indicating obesity. A BMI of 27 falls within the overweight range, not obesity (which starts at 30). Choices A and B are incorrect because a BMI of 35 indicates obesity, not normal limits or being lower than normal. Therefore, the correct answer is C, indicating obesity based on the BMI calculation.

5. Acyclovir is the drug of choice for:

• A. HIV
• B. HSV 1 and 2 and VZV
• C. CMV
• D. influenza A viruses

Correct answer: C

Rationale: Acyclovir (Zovirax) is specifically used to treat infections caused by herpes simplex virus types 1 and 2 (HSV-1 and HSV-2) and varicella-zoster virus (VZV). These include conditions like cold sores, genital herpes, and shingles. Acyclovir works by inhibiting viral DNA replication, leading to the formation of shorter, ineffective DNA chains. It is important to note that acyclovir is not effective against other viruses like HIV, cytomegalovirus (CMV), or influenza A viruses. Therefore, the correct answer is HSV 1 and 2 and VZV.

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