Nursing Elites

1. A home care nurse instructs the mother of a 5-year-old child with lactose intolerance about dietary measures for her child. The nurse should tell the mother that it is necessary to provide which dietary supplement in the child's diet?

• A. Fats
• B. Zinc
• C. Protein
• D. Calcium

Correct answer: D

Rationale: In lactose intolerance, the inability to digest lactose, the sugar in dairy products, can lead to calcium deficiency if dairy products are removed from the diet. Calcium is crucial for bone health and other bodily functions, so alternative calcium sources like fortified non-dairy milks or leafy greens must be included to prevent deficiency. While fats and proteins are important nutrients, they are not typically deficient in lactose intolerance. Zinc, although an essential mineral, is not the primary concern in this case.

2. Which client is at highest risk for developing a pressure ulcer?

• A. 23 year-old in traction for fractured femur
• B. 72 year-old with peripheral vascular disease, who is unable to walk without assistance
• C. 75 year-old with left sided paresthesia and is incontinent of urine and stool
• D. 30 year-old who is comatose following a ruptured aneurysm

Correct answer: C

Rationale: Risk factors for pressure ulcers include: immobility, absence of sensation, decreased LOC, poor nutrition and hydration, skin moisture, incontinence, increased age, decreased immune response. This client has the greatest number of risk factors.

3. Which of the following conditions most commonly causes acute glomerulonephritis?

• A. A congenital condition leading to renal dysfunction.
• B. Prior infection with group A Streptococcus within the past 10-14 days.
• C. Viral infection of the glomeruli.
• D. Nephrotic syndrome.

Correct answer: B

Rationale: Acute glomerulonephritis is most commonly caused by the immune response to a prior upper respiratory infection with group A Streptococcus. Glomerular inflammation occurs about 10-14 days after the infection, resulting in scant, dark urine and retention of body fluid. Periorbital edema and hypertension are common signs at diagnosis.

4. The nurse analyzes the results of a patient's arterial blood gases (ABGs). Which finding would require immediate action?

• A. The bicarbonate level (HCO3) is 31 mEq/L
• B. The arterial oxygen saturation (SaO2) is 92%
• C. The partial pressure of CO2 in arterial blood (PaCO2) is 31 mm Hg
• D. The partial pressure of oxygen in arterial blood (PaO2) is 59 mm Hg

Correct answer: D

Rationale: While all the values are abnormal, the low PaO2 level of 59 mm Hg indicates that the patient is at a critical point on the oxyhemoglobin dissociation curve. At this level, a small decrease in PaO2 can lead to a significant drop in oxygen saturation and compromise tissue oxygenation. Therefore, immediate intervention is necessary to improve the patient's oxygenation status. Choice A (HCO3 of 31 mEq/L) may indicate metabolic alkalosis or compensation for respiratory acidosis; however, it does not require immediate action in this scenario. Choice B (SaO2 of 92%) is slightly low but not critically low to require immediate action. Choice C (PaCO2 of 31 mm Hg) is within the normal range and does not indicate immediate danger to the patient.

5. A patient has a history of photosensitive reactions to medications. Which of the following drugs is associated with photosensitive reactions? Select one that doesn't apply

• A. Ciprofloxacin (Cipro)
• B. Sulfonamide
• C. Norfloxacin (Noroxin)
• D. Nitro-Dur patch

Correct answer: D

Rationale: Nitro-Dur patch is not associated with photosensitive reactions. It is used to prevent chest pain or angina, and common side effects include headache, lightheadedness, nausea, and flushing. Choices A, B, and C are known to cause photosensitive reactions. Ciprofloxacin (Cipro), Sulfonamides, and Norfloxacin (Noroxin) are drugs that are commonly associated with photosensitivity reactions. Patients taking these medications should be advised to avoid direct sunlight and use sun protection to prevent skin reactions.

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