A public health nurse is teaching a group of nurses about smallpox. Which of the following statements by one of the nurses indicates understanding of the teaching?

Unlike chickenpox, the vesicles of smallpox are more abundant on the face.

Smallpox lesions appear in various stages of healing.

Vaccination against smallpox provides lifelong immunity.

There are rare, occasional occurrences of smallpox.

Answer and Explanation

The Correct Answer is A

Choice A reason: Unlike Chickenpox, the Vesicles of Smallpox Are More Abundant on the Face

This statement indicates an understanding of the teaching. Smallpox lesions are indeed more abundant on the face and extremities compared to chickenpox, which tends to have a more central distribution on the trunk. Smallpox lesions are also typically more uniform in their stage of development, whereas chickenpox lesions can appear in various stages of healing simultaneously.

Choice B reason: Smallpox Lesions Appear in Various Stages of Healing

This statement is incorrect. Unlike chickenpox, where lesions can be in different stages of healing at the same time, smallpox lesions generally progress through the same stages simultaneously. This uniformity in lesion development is a distinguishing feature of smallpox.

Choice C reason: Vaccination Against Smallpox Provides Lifelong Immunity

This statement is partially correct but needs clarification. The smallpox vaccine provides long-lasting immunity, but it may not be lifelong. Immunity can wane over time, and booster vaccinations may be necessary for continued protection.

Choice D reason: There Are Rare, Occasional Occurrences of Smallpox

This statement is incorrect. Smallpox was declared eradicated in 1980 by the World Health Organization (WHO). There have been no naturally occurring cases of smallpox since then. The only known stocks of the virus are kept in secure laboratories for research purposes.

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Correct Answer is A

Explanation

Choice A reason: Obtain a 12-lead ECG

Obtaining a 12-lead ECG is a critical action when a client has a potassium level of 6.8 mEq/L, which indicates hyperkalemia. Hyperkalemia can cause serious cardiac dysrhythmias, including life-threatening arrhythmias such as ventricular fibrillation or asystole. An ECG can help detect these abnormalities early, allowing for prompt intervention to prevent cardiac complications. The ECG may show characteristic changes such as peaked T waves, widened QRS complexes, and prolonged PR intervals, which are indicative of hyperkalemia.

Choice B reason: Suggest that the client use a salt substitute

Suggesting that the client use a salt substitute is not appropriate in this situation. Many salt substitutes contain potassium chloride, which can further increase the potassium level in the blood. For a client with hyperkalemia, it is crucial to avoid additional sources of potassium to prevent exacerbating the condition. Therefore, recommending a salt substitute could be harmful.

Choice C reason: Advise the client to add citrus juices and bananas to her diet

Advising the client to add citrus juices and bananas to her diet is also inappropriate. Both citrus juices and bananas are high in potassium and can contribute to an increase in serum potassium levels. For a client with hyperkalemia, it is essential to limit dietary potassium intake to help lower the potassium levels in the blood. Encouraging the consumption of high-potassium foods would be counterproductive and potentially dangerous.

Choice D reason: Obtain a blood sample for a serum sodium level

While obtaining a blood sample for a serum sodium level can be part of a comprehensive assessment, it is not the immediate priority in managing hyperkalemia. The primary concern with a potassium level of 6.8 mEq/L is the risk of cardiac dysrhythmias. Therefore, obtaining an ECG to monitor the heart’s electrical activity is the most urgent and appropriate action. Once the immediate risk is addressed, further laboratory tests, including serum sodium levels, can be conducted as part of the overall assessment and management plan.

Correct Answer is ["0.2"]

Explanation

Step 1: Determine the concentration of morphine sulfate available. = 10 mg/mL

Step 2: Determine the dose of morphine sulfate to be administered. = 2 mg

Step 3: Calculate the volume to be administered using the formula: Volume to be administered = Dose ÷ Concentration

Step 4: Perform the division. Calculation: 2 mg ÷ 10 mg/mL = 0.2 mL

Step 5: Round the answer to the nearest tenth if necessary. = 0.2 mL (no rounding needed)

The nurse should administer 0.2 mL per dose.

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A public health nurse is teaching a group of nurses about smallpox. Which of the following statements by one of the nurses indicates understanding of the teaching?

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Naxlex Comprehensive Predictor Exams

A nurse is caring for a client who has hypertension and has a potassium level of 6.8 mEq/L. Which of the following actions should the nurse take?

Correct Answer is A

Explanation

A nurse is preparing to administer morphine sulfate 2 mg IV bolus. Available is morphine sulfate 10 mg/mL. How many mL should the nurse administer per dose? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)

Correct Answer is ["0.2"]

Explanation

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