which electrolyte is important in hemoglobin production

ATI RN

ATI Fluid and Electrolytes

1. Which mineral is important in hemoglobin production?

A. Sodium
B. Iodine
C. Iron
D. Chloride

Correct answer: C

Rationale: Iron (Fe) is a critical mineral in hemoglobin production. Hemoglobin is a protein found in red blood cells that is essential for transporting oxygen throughout the body. Sodium (Choice A), Iodine (Choice B), and Chloride (Choice D) are not directly involved in hemoglobin production. Sodium is an electrolyte that helps maintain fluid balance, Iodine is essential for thyroid hormone production, and Chloride is an electrolyte that helps regulate fluid balance and acidity in the body.

2. A patient is taking spironolactone (Aldactone) to control her hypertension. Her serum potassium level is 6 mEq/L. For this patient, the nurse's priority would be to assess her:

A. Neuromuscular function
B. Bowel sounds
C. Respiratory rate
D. Electrocardiogram (ECG) results

Correct answer: D

Rationale: In a patient with a serum potassium level of 6 mEq/L due to spironolactone use, the nurse's priority is to assess the Electrocardiogram (ECG) results. Hyperkalemia can lead to life-threatening arrhythmias, such as ventricular fibrillation, which can be detected on an ECG. While changes in neuromuscular function, bowel sounds, and respiratory rate can occur with hyperkalemia, the most critical assessment related to the patient's condition would be monitoring the ECG for signs of cardiac complications.

3. A nurse is assessing clients who have intravenous therapy prescribed. Which assessment finding for a client with a peripherally inserted central catheter (PICC) requires immediate attention?

A. The initial site dressing is 3 days old.
B. The PICC was inserted 4 weeks ago.
C. A securement device is absent.
D. Upper extremity swelling is noted.

Correct answer: D

Rationale:

4. Which of the following statements is correct?

A. People with less body fat have more body water.
B. Infants have more water per pound than adults.
C. Females have more body water per pound than males.
D. Infants have the same water content per pound as adults.

Correct answer: A

Rationale: The correct statement is that people with less body fat have more body water. This is because fat tissue contains less water compared to lean tissue, so individuals with less body fat generally have a higher percentage of body water. Choice B is incorrect as infants actually have more water per pound than adults due to their higher body water content. Choice C is incorrect as males typically have more body water per pound than females. Choice D is incorrect as infants have a higher water content per pound compared to adults.