Nursing Elites

1. A patient has a serum potassium level of 2.7 mEq/L. The patient’s provider has determined that the patient will need 200 mEq of potassium to replace serum losses. How will the nurse caring for this patient expect to administer the potassium?

• A. As a single-dose 200 mEq oral tablet
• B. As an intravenous bolus over 15 to 20 minutes
• C. In an intravenous solution at a rate of 10 mEq/hour
• D. In an intravenous solution at a rate of 45 mEq/hour

Correct answer: C

Rationale: For a patient with severe hypokalemia with a serum potassium level of 2.7 mEq/L requiring 200 mEq of potassium replacement, the appropriate route of administration would be intravenous. Potassium chloride should be administered slowly to prevent adverse effects; therefore, the correct option is to administer the potassium in an intravenous solution at a rate of 10 mEq/hour. Choices A and B are incorrect because potassium should not be given as a single-dose oral tablet or as an intravenous bolus over a short period of time due to the risk of adverse effects. Choice D is also incorrect as the rate of 45 mEq/hour exceeds the recommended maximum infusion rate for adults with a serum potassium level greater than 2.5 mEq/L, which is 10 mEq/hour.

2. Which of the following is a sign of hypocalcemia?

• A. Hyperactive reflexes.
• B. Depressed reflexes.
• C. Muscle cramps.
• D. Seizures.

Correct answer: A

Rationale: Hyperactive reflexes are a classic sign of hypocalcemia. Hypocalcemia leads to increased neuromuscular excitability, resulting in hyperactive reflexes. Depressed reflexes (Choice B) are not typically associated with hypocalcemia. Muscle cramps (Choice C) can be seen in hypocalcemia due to muscle irritability but are not a specific sign. Seizures (Choice D) can occur in severe cases of hypocalcemia but are not as common as hyperactive reflexes.

3. A healthcare professional assesses clients on the medical-surgical unit. Which client is at greatest risk for the development of bacterial cystitis?

• A. A 36-year-old female who has never been pregnant
• B. A 42-year-old male who is prescribed cyclophosphamide
• C. A 58-year-old female who is not taking estrogen replacement
• D. A 77-year-old male with mild congestive heart failure

Correct answer: C

Rationale: Females are at higher risk of developing bacterial cystitis due to their shorter urethra compared to males. Postmenopausal women not on estrogen replacement therapy are particularly susceptible to cystitis because of changes in vaginal and urethral cells. This increases the risk of bacterial infection. The other options do not have the same level of risk as the postmenopausal woman not using hormone replacement therapy. A never-pregnant middle-aged woman does not have the same increased risk as a postmenopausal woman with hormonal changes.

4. The healthcare provider is developing standards of care for a client with gastroesophageal reflux disease and wants to review current evidence for practice. Which one of the following resources will provide the most helpful information?

• A. A review in the Cochrane Library.
• B. A literature search in a database, such as the Cumulative Index to Nursing and Allied Health Literature (CINAHL).
• C. An online nursing textbook.
• D. The policy and procedure manual at the healthcare agency.

Correct answer: A

Rationale: The Cochrane Library provides systematic reviews of primary research in healthcare, making it a reliable resource for evidence-based practice. Choice B, a literature search in a database like CINAHL, may also be useful but does not guarantee the same level of systematic review and reliability as the Cochrane Library. Choice C, an online nursing textbook, may offer information but might not provide the most current or evidence-based practices. Choice D, the policy and procedure manual at the healthcare agency, is unlikely to offer the comprehensive evidence-based information needed for developing standards of care.

5. A client with a diagnosis of hypothermia is being admitted to the hospital by a nurse. Which of the following signs does the nurse anticipate that this client will exhibit?

• A. Increased heart rate and increased blood pressure
• B. Increased heart rate and decreased blood pressure
• C. Decreased heart rate and increased blood pressure
• D. Decreased heart rate and decreased blood pressure

Correct answer: D

Rationale: Hypothermia decreases the heart rate and blood pressure due to reduced metabolic needs of the body. With lower metabolic demands, the heart's workload decreases, leading to reductions in both heart rate and blood pressure. Choices A, B, and C are incorrect because hypothermia typically results in a decrease in heart rate and blood pressure, not an increase.

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