What is the normal range of serum potassium level in adults?

3.5 to 5.0 mEq/L

8.5 to 10.5 mg/dL

135 to 145 mEq/L

1.8 to 2.6 mEq/L

Answer and Explanation

The Correct Answer is A

Choice A reason: This is correct because 3.5 to 5.0 mEq/L is the normal range of serum potassium level in adults. Potassium is an electrolyte that is important for nerve and muscle function, as well as acid-base balance.

Choice B reason: This is incorrect because 8.5 to 10.5 mg/dL is the normal range of serum calcium level in adults, not potassium. Calcium is an electrolyte that is involved in bone health, muscle contraction, and blood clotting.

Choice C reason: This is incorrect because 135 to 145 mEq/L is the normal range of serum sodium level in adults, not potassium. Sodium is an electrolyte that is essential for fluid balance, nerve transmission, and muscle contraction.

Choice D reason: This is incorrect because 1.8 to 2.6 mEq/L is the normal range of serum magnesium level in adults, not potassium. Magnesium is an electrolyte that is important for muscle and nerve function, as well as enzyme activity.

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Correct Answer is B

Explanation

Choice A reason: Panting with mouth open is not an appropriate intervention for an anxious patient with a high respiratory rate. This could increase the risk of hyperventilation and respiratory alkalosis, which could worsen the anxiety and cause symptoms such as dizziness, tingling, and muscle spasms.

Choice B reason: Sitting up is an appropriate intervention for an anxious patient with a high respiratory rate. This could help the patient relax and breathe more deeply and slowly, which could reduce the anxiety and normalize the blood gas levels.

Choice C reason: Lying down is not an appropriate intervention for an anxious patient with a high respiratory rate. This could make the patient feel more claustrophobic and increase the anxiety and the respiratory rate.

Choice D reason: Breathing through a re-breather mask is not an appropriate intervention for an anxious patient with a high respiratory rate. This could increase the oxygen concentration in the blood, which could reduce the stimulus for breathing and cause respiratory depression.

A. 120 to 140 mEq/L B. 135 to 145 mEq/L C. 150 to 160 mEq/L D. 165 to 175 mEq/L

Correct Answer is B

Explanation

Choice A reason: This is incorrect because 120 to 140 mEq/L is a low range for serum sodium, which indicates hyponatremia. Hyponatremia can cause confusion, lethargy, seizures, and coma.

Choice B reason: This is correct because 135 to 145 mEq/L is the normal range of serum sodium in adults. Sodium is essential for fluid balance, nerve transmission, and muscle contraction.

Choice C reason: This is incorrect because 150 to 160 mEq/L is a high range for serum sodium, which indicates hypernatremia. Hypernatremia can cause thirst, dry mouth, agitation, and convulsions.

Choice D reason: This is incorrect because 165 to 175 mEq/L is a very high range for serum sodium, which indicates severe hypernatremia. Severe hypernatremia can cause irreversible brain damage and death.

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What is the normal range of serum potassium level in adults?

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Naxlex Comprehensive Predictor Exams

An anxious adult patient is experiencing a respiratory rate of 40 breaths/min. The most appropriate intervention that the nurse could do is to instruct the patient to:

Correct Answer is B

Explanation

What is the normal range of serum sodium in adults?

Correct Answer is B

Explanation

George Torres is admitted with a head injury. He is comatose and is breathing rapidly. His blood gases show a pH of 7.47, PaCO2 of 32 mm Hg, and HCO3- of 26 mEq/L. Compare these gases to normal values. What type of imbalance does this patient have, and is it being compensated or uncompensated?

The nurse is reviewing the health records of assigned clients. The nurse would plan care knowing that which client is at risk for fluid volume deficit?

The nurse is caring for a client with a nasogastric tube that is attached to low suction. The nurse monitors the client closely for which acid-base disorder that is most likely to occur in this situation?

A nurse is caring for a client who has a potassium deficiency. Which of the following foods should the nurse recommend as the best source of potassium?

A nurse is collecting data from a patient who has dehydration. Which of the following findings should the nurse expect?

The nurse reviews a client's electrolyte results and notes that the potassium level is 5.4 mEq/L. What would the nurse look for on the cardiac monitor as a result of this laboratory value?

Which electrolyte imbalance is most likely to cause abdominal pain, urinary retention, and confusion?

The registered nurse reviews the result of the arterial blood gas values with the licensed practical nurse and tells the LPN that the client has respiratory acidosis. The LPN would expect to note which of the following on the laboratory result report?