Nursing Elites

1. Which diagnostic test is used to confirm tuberculosis (TB) infection?

• A. Chest X-ray
• B. Sputum culture
• C. Skin test (Mantoux)
• D. MRI

Correct answer: C

Rationale: The Mantoux skin test, also known as the Tuberculin Skin Test (TST), is used to confirm tuberculosis (TB) infection. This test involves injecting a small amount of tuberculin protein derivative under the top layer of the skin and then evaluating the immune system's response to the protein. A positive reaction indicates exposure to the TB bacteria. Chest X-rays are used to detect abnormalities in the lungs caused by TB but are not confirmatory. Sputum culture is used to identify the presence of TB bacteria in the sputum. MRIs are not typically used as a primary diagnostic tool for TB.

2. A client is prescribed furosemide and needs to consume potassium-rich foods. Which of the following foods should the client be advised to include in the diet?

• A. Grapes.
• B. Apples.
• C. Bananas.
• D. Rice.

Correct answer: C

Rationale: The correct answer is C: Bananas. Bananas are rich in potassium and should be included in the diet of clients taking furosemide, a potassium-wasting diuretic. Grapes, apples, and rice are not as high in potassium as bananas and would not be as effective in replenishing potassium levels in clients taking furosemide.

3. A nurse is preparing to administer dopamine hydrochloride 4 mcg/kg/min via continuous infusion. The client weighs 80 kg. How many mL/hr should the nurse set the IV infusion to deliver?

• A. 6 mL/hr
• B. 8 mL/hr
• C. 12 mL/hr
• D. 16 mL/hr

Correct answer: A

Rationale: To calculate the correct rate, use the formula: (4 mcg/kg/min * 80 kg) / 800 mcg in 250 mL = 6 mL/hr. This calculation is based on the dose ordered (4 mcg/kg/min) multiplied by the patient's weight in kg (80 kg), divided by the concentration of the drug available (800 mcg in 250 mL) to be infused over 1 hour. Therefore, the correct answer is 6 mL/hr. Choices B, C, and D are incorrect as they do not reflect the accurate calculation based on the provided information.

4. If a nurse administers an incorrect dose of medication, which fact related to the incident report should the nurse document in the client's medical record?

• A. Time the medication was given
• B. The client's response to the medication
• C. The dose that was administered
• D. Reason for the error

Correct answer: A

Rationale: The correct answer is to document the time the medication was given. This is essential for understanding the sequence of events surrounding the medication error. While documenting the client's response to the medication (Choice B) is important for assessing any effects, the immediate concern should be to establish a clear timeline by documenting the time of administration. Recording the dose administered (Choice C) is also important, but in the context of understanding the incident, the time factor takes precedence. The reason for the error (Choice D) should be included in the incident report but may not be the first priority when documenting in the client's medical record.

5. A nurse is caring for a client who has a new prescription for warfarin. Which of the following laboratory values should the nurse monitor to determine the effectiveness of the medication?

• A. Hemoglobin
• B. Platelet count
• C. Prothrombin time (PT)
• D. International normalized ratio (INR)

Correct answer: D

Rationale: The correct answer is D, International normalized ratio (INR). INR is used to monitor the therapeutic effect of warfarin, an anticoagulant medication. Warfarin works by inhibiting the synthesis of vitamin K-dependent clotting factors. Monitoring the INR helps assess how well the medication is working to prevent blood clots. Choices A, B, and C are not specific indicators for monitoring the effectiveness of warfarin. Hemoglobin levels primarily assess the oxygen-carrying capacity of red blood cells, platelet count evaluates the clotting ability of blood, and PT measures the time it takes for blood to clot. While these values are important for overall health assessment, they do not directly reflect the anticoagulant effects of warfarin.

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