Nursing Elites

1. Which of the following is reflected in an ECG due to hypokalemia?

• A. Tall T waves and Pathologic Q wave
• B. Widening QRS Complex and U wave
• C. None of the above
• D. Both A and B

Correct answer: B

Rationale: Hypokalemia, a condition characterized by low levels of potassium in the blood, is reflected in an ECG by a widening QRS Complex and a U wave. This is because potassium plays a key role in the electrical activity of the heart, and its deficiency can lead to abnormalities in the heart's rhythm as represented by these specific changes on the ECG. Choice A is incorrect as tall T waves and pathologic Q waves are more commonly associated with hyperkalemia or myocardial infarction, respectively, rather than hypokalemia. Choices C and D are also incorrect as they do not accurately reflect the ECG changes caused by hypokalemia.

2. When is Prevident indicated?

• A. High caries risk
• B. Crown and bridge work
• C. Orthodontic decalcification
• D. All of the above

Correct answer: D

Rationale: Prevident is indicated for all the situations listed in the choices. It is recommended for patients with a high risk of caries to reduce the risk of tooth decay. It is also used in dental procedures like crown and bridge work to strengthen enamel and prevent cavities. Furthermore, it is utilized for orthodontic decalcification to aid in remineralizing the tooth structure and prevent further damage. Therefore, the correct answer is 'All of the above.' While choices A, B, and C are individually correct, selecting 'All of the above' is the most appropriate as it encompasses all the possible indications for Prevident.

3. A client with chronic kidney disease is being taught about dietary needs by a nurse. Which of the following foods should the nurse identify as being the lowest in phosphorus?

• A. Medium apple
• B. Bran cereal
• C. Scrambled eggs
• D. Ground turkey

Correct answer: A

Rationale: The correct answer is A, a medium apple. Apples are a suitable option for clients with chronic kidney disease as they are low in phosphorus. Bran cereal (choice B), scrambled eggs (choice C), and ground turkey (choice D) are all higher in phosphorus content compared to apples, making them less ideal choices for individuals with chronic kidney disease.

4. A client with stomatitis is receiving teaching from a nurse. Which of the following client statements indicates a need for further teaching?

• A. "I will drink liquids through a straw."?
• B. "I will season foods with dried spices before cooking."?
• C. "I will rinse my mouth with baking soda and water frequently."?
• D. "I will eat frozen bananas as a snack."?

Correct answer: C

Rationale: The correct answer is, "I will rinse my mouth with baking soda and water frequently."? Stomatitis is an inflammation of the mucous lining in the mouth, and rinsing with baking soda and water can be too abrasive and further irritate the condition. Choices A, B, and D are appropriate self-care measures for a client with stomatitis and do not indicate a need for further teaching.

5. Studies suggest that leukoplakia is resolved by excess vitamin A (a fat-soluble vitamin), retinoids, and beta-carotene. Leukoplakia is a white plaque that forms on oral mucous membranes.

• A. Both statements are true.
• B. Both statements are false.
• C. The first statement is true; the second is false.
• D. The first statement is false; the second is true.

Correct answer: B

Rationale: Both statements are false. Studies suggest that leukoplakia, a white plaque that forms on oral mucous membranes, can be resolved by vitamin A, retinoids, and beta-carotene. Despite the potential to resolve leukoplakia, relapse is common. Also pertinent, evidence does not indicate that any of these nutrients prevent malignant transformation. The extract provided clarifies that leukoplakia is a white plaque, not an erythematous lesion, and that vitamin A, retinoids, and beta-carotene can help resolve it.

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