Nursing Elites

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

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

Correct answer: B

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.

2. 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.

3. In a patient with osteoporosis, which mineral is essential to prevent further bone loss?

• A. Iron
• B. Phosphorus
• C. Magnesium
• D. Calcium

Correct answer: D

Rationale: Calcium is crucial in preventing bone loss in patients with osteoporosis.

4. A nurse is caring for a client with a thiamine deficiency. Which assessment findings will the nurse expect?

• A. Tachycardia, muscle weakness, and lack of coordination
• B. Swollen lips, cracks in the corners of the mouth, and glossitis
• C. Neuropsychiatric symptoms of delusions and hallucinations
• D. Scaly rash on arms, dementia, and diarrhea

Correct answer: A

Rationale: Thiamine deficiency, also known as Vitamin B1 deficiency, can present with various symptoms. Tachycardia, muscle weakness, and lack of coordination are classic signs of thiamine deficiency due to its role in energy metabolism. Swollen lips, cracks in the corners of the mouth, and glossitis are more indicative of a deficiency in riboflavin (Vitamin B2). Neuropsychiatric symptoms of delusions and hallucinations are characteristic of niacin (Vitamin B3) deficiency. A scaly rash on the arms, dementia, and diarrhea are not typically associated with thiamine deficiency. Therefore, the correct assessment findings for a client with thiamine deficiency are tachycardia, muscle weakness, and lack of coordination.

5. Instruction on health promotion regarding urinary elimination is important. Which would you include?

• A. Hold urine as long as possible before emptying the bladder to strengthen the sphincter muscles
• B. If a burning sensation is experienced while voiding, drink water
• C. After urination, wipe from the anal area towards the pubis
• D. Tell the client to empty the bladder at each voiding

Correct answer: D

Rationale: The correct answer is to instruct the client to empty the bladder at each voiding. This is essential to prevent urinary retention and reduce the risk of urinary tract infections. Choice A is incorrect because holding urine for prolonged periods can lead to urinary retention and increase the risk of infections. Choice B is incorrect as pineapple juice can exacerbate a burning sensation due to its acidity; the correct approach is to drink water to dilute the urine. Choice C is incorrect as wiping from the anal area towards the pubis can introduce bacteria into the urinary tract, potentially causing infections.

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