Nursing Elites

1. Each statement is true of calcium within saliva, except one. Which is the exception?

• A. Saliva is supersaturated with calcium.
• B. Saliva is a source of calcium to mineralize an immature or demineralized enamel surface.
• C. Calcium and phosphate in saliva provide a buffering action.
• D. Calcium within saliva increases dental caries.

Correct answer: D

Rationale: The correct answer is D. Calcium within saliva does not increase dental caries; in fact, the buffering action provided by calcium and phosphate in saliva inhibits caries formation by preventing the dissolution of enamel by plaque biofilm. Choice A is correct as saliva is indeed supersaturated with calcium. Choice B is correct as saliva serves as a source of calcium to mineralize an immature or demineralized enamel surface. Choice C is correct as calcium and phosphate in saliva do provide a buffering action to protect teeth from acids.

2. A nurse is developing a plan of care for a client who has anorexia nervosa. Which of the following actions should the nurse include in the plan?

• A. Encourage the client to participate in developing a system of rewards.
• B. Arrange for someone to remain with the client for 30 minutes after meals.
• C. Offer the client a selection of beverages at each meal.
• D. Inform the client that a weight gain of 2.3 kg per week is expected.

Correct answer: A

Rationale: Encouraging the client to participate in developing a system of rewards is an essential part of the plan of care for a client with anorexia nervosa. This action can help motivate and engage the client in their treatment plan, promoting a sense of achievement and progress. Choice B, arranging for someone to remain with the client for 30 minutes after meals, may not address the underlying issues related to anorexia nervosa and could potentially disrupt the client's independence. Choice C, offering a selection of beverages at each meal, is not directly related to addressing the client's condition of anorexia nervosa. Choice D, informing the client about an expected weight gain, could increase anxiety and may not be appropriate without considering the client's individual progress and readiness.

3. Which organ produces and secretes bicarbonate ions and insulin?

• A. Stomach
• B. Pancreas
• C. Large intestine
• D. Small intestine

Correct answer: B: Pancreas

Rationale: The pancreas is the correct answer because it performs two vital functions: producing bicarbonate ions to neutralize stomach acid in the small intestine and secreting insulin to regulate blood glucose levels. The stomach is incorrect because its primary function is to break down and digest food, not produce bicarbonate ions or insulin. The large and small intestines are also incorrect because their primary functions are to absorb nutrients and water from food, rather than producing bicarbonate ions or insulin.

4. Why does Anita stand in front of the mirror while performing a Breast Self-Examination (BSE)?

• A. To check for unusual discharges from the breast
• B. To check for any obvious malignancy
• C. To observe the size and contour of the breast
• D. To check for thickness and lumps in the breast

Correct answer: C

Rationale: When performing a Breast Self-Examination (BSE), one of the reasons for standing in front of a mirror is to observe the size and contour of the breast (Choice C). This helps in identifying any visible changes or abnormalities such as dimpling, puckering, or changes in the size and shape of the breasts. While unusual discharges (Choice A) and thickness or lumps (Choice D) can be part of the changes a person might notice during a BSE, these are typically identified by palpation or by squeezing the nipple for discharge, not by just looking in the mirror. Choice B, checking for obvious malignancy, is too vague and not specific enough as malignancy is often not visible to the naked eye.

5. What special consideration should be taken into account when Mario prepares Richard for postural drainage and percussion?

• A. Monitoring a respiratory rate of 16 to 20 per minute
• B. Assessing the client's ability to tolerate sitting and lying positions
• C. Ensuring the client is free of signs of infection
• D. Knowing the time of the client's last food and fluid intake

Correct answer: A

Rationale: The correct answer is A, 'Monitoring a respiratory rate of 16 to 20 per minute'. When performing postural drainage and percussion, it is crucial to monitor the respiratory rate to ensure the safety and effectiveness of the procedure. Choice B, 'Assessing the client's ability to tolerate sitting and lying positions', while important, is not directly related to the specifics of postural drainage and percussion. Similarly, option C, 'Ensuring the client is free of signs of infection', although important, is not directly linked to the procedure. Option D, 'Knowing the time of the client's last food and fluid intake', might be relevant for other procedures, but it is not the primary consideration for postural drainage and percussion.

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