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. When surgery is on-going, who coordinates the activities outside, including the family?

• A. Orderly/clerk C. Circulating Nurse
• B. Nurse Supervisor D. Anesthesiologist
• C.
• D.

Correct answer: B

Rationale: Nursing interventions should be grounded in a deep understanding of the physiological processes involved, ensuring that care provided is both effective and efficient.

3. A nurse is caring for a client following a CVA and observes the client experiencing severe dysphagia. The nurse notifies the provider. Which of the following nutritional therapies will likely be prescribed?

• A. NPO until dysphagia subsides
• B. Supplements via nasogastric tube
• C. Initiation of total parenteral nutrition
• D. Soft residue diet

Correct answer: B

Rationale: In the scenario of severe dysphagia following a CVA, the client may have difficulty swallowing and require alternative nutritional support. Providing supplements via a nasogastric tube allows for the delivery of essential nutrients directly into the stomach, bypassing the swallowing difficulties. NPO (nothing by mouth) until dysphagia subsides may be too restrictive for the client's nutritional needs. Initiation of total parenteral nutrition is usually reserved for cases where enteral feeding is not possible or contraindicated. A soft residue diet may not be suitable for a client experiencing severe dysphagia.

4. In which condition is underconsumption of fat not a concern?

• A. Malabsorption syndromes
• B. Cystic fibrosis
• C. AIDS
• D. Hypertension

Correct answer: D

Rationale: The correct answer is D, Hypertension. Hypertension is not typically associated with underconsumption of fat; instead, it is more related to the consumption of excess fat, especially saturated and trans fats, which can contribute to increased blood pressure. Malabsorption syndromes, cystic fibrosis, and AIDS are conditions where underconsumption of fat can be a concern due to various reasons such as malabsorption issues, pancreatic insufficiency, or increased energy needs.

5. Fat-soluble vitamins are different from water-soluble vitamins because the body is able to store only small amounts of fat-soluble vitamins.

• A. Both the statement and the reason are correct and related.
• B. Both the statement and the reason are correct but are not related.
• C. The statement is correct, but the reason is not correct.
• D. The statement is not correct, but the reason is correct.

Correct answer: C

Rationale: The statement is correct, but the reason is not correct. A major difference between fat-soluble and water-soluble vitamins is that the body is able to store larger amounts of fat-soluble vitamins. Vitamins A and D are stored for long periods; therefore, minor shortages might not be identified until drastic depletion has occurred. Observable signs and symptoms of a dietary deficiency are often not identified until they are in an advanced state. Water-soluble vitamins, on the other hand, are not stored in the body and are excreted in the urine if taken in excess, making it harder to reach toxic levels.

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