Nursing Elites

1. A client with cancer is admitted to the oncology unit. Stat lab values reveal Hgb 12.6, WBC 6500, K+ 1.9, uric acid 7.0, Na+ 136, and platelets 178,000. The nurse evaluates that the client is experiencing which of the following?

• A. Hypernatremia
• B. Hypokalemia
• C. Myelosuppression
• D. Leukocytosis

Correct answer: B

Rationale: The correct answer is 'Hypokalemia.' The potassium level of 1.9 indicates low potassium levels, a condition known as hypokalemia. The other lab values are within normal ranges: Hgb 12.6, WBC 6500, uric acid 7.0, Na+ 136, and platelets 178,000. Hypernatremia (choice A) refers to high sodium levels, which are not present in this case. Myelosuppression (choice C) is a decrease in bone marrow activity, which is not indicated by the lab values provided. Leukocytosis (choice D) is an increase in white blood cells, which is also not present based on the given values.

2. Activities of effective supervisors can be task-related or people-related activities. An example of a task-related supervisory activity is:

• A. coaching.
• B. evaluating.
• C. delegating.
• D. facilitating.

Correct answer: C

Rationale: Delegating is the act of assigning work to those capable and competent to do the work, making it a task-related supervisory activity. Coaching, evaluating, and facilitating are people-related supervisory activities. Coaching involves guiding and developing individuals, evaluating entails assessing performance, and facilitating focuses on enabling tasks and processes. These activities are more centered on interacting with and supporting people rather than directly assigning tasks. Therefore, in the context of task-related activities, delegating stands out as the correct choice.

3. The healthcare provider recognizes that which of the following would be most appropriate to wear when providing direct care to a client with a cough?

• A. Mask
• B. Gown
• C. Gloves
• D. Shoe covers

Correct answer: A

Rationale: When providing care to a client with a cough, it is crucial to wear a mask to protect oneself from inhaling respiratory droplets containing infectious agents. The primary mode of transmission for coughs is through airborne droplets, making a mask the most appropriate choice to prevent the spread of respiratory infections. Gloves and gowns are more relevant when there is a risk of contact with bodily fluids, which is not the main concern with a cough. Shoe covers are not necessary in this scenario as the transmission of respiratory infections is not linked to footwear. Therefore, wearing a mask is the best choice to prevent airborne transmission and ensure the safety of the healthcare provider.

4. Narrow therapeutic index medications:

• A. are drug formulations with limited pharmacokinetic variability.
• B. have limited value and require no monitoring of blood levels.
• C. have less than a twofold difference in minimum toxic levels and minimum effective concentration in the blood
• D. have limited potency and side effects.

Correct answer: C

Rationale: The therapeutic index is the ratio between the median lethal dose and median effective dose of a drug, indicating the safety margin. Narrow therapeutic index medications have a small difference between minimum toxic levels and minimum effective concentration in the blood, making them high-risk drugs that require close monitoring to avoid toxicity. Choice A is incorrect because pharmacokinetics refer to drug absorption, distribution, metabolism, and elimination, not the therapeutic index. Choice B is incorrect because narrow therapeutic index drugs necessitate monitoring due to their narrow margin of safety. Choice D is incorrect because narrow therapeutic index drugs do not necessarily have limited potency but are characterized by a small window between efficacy and toxicity.

5. A 50-milliliter (ml) bolus of normal saline fluid is ordered by the physician. The physician wants it to infuse in 30 minutes. The nurse should set the pump rate at:

• A. 100 ml per hour for one hour.
• B. 60 ml per hour for one-half hour
• C. 120 ml per hour for one hour.
• D. 50 ml per hour for one hour.

Correct answer: A

Rationale: To infuse a 50 ml bolus in 30 minutes, the rate should be calculated as follows: 50 ml / 30 min = 100 ml per hour. Therefore, the correct answer is to set the pump rate at 100 ml per hour for one hour. Choice A is the correct rate based on the calculation. Choices B, C, and D all provide incorrect rates that do not match the physician's order. Choice B would only deliver 30 ml in 30 minutes, not the ordered 50 ml. Choice C would deliver 120 ml in one hour, which is 20 ml more than ordered. Choice D would only provide 25 ml over 30 minutes, not the full 50 ml prescribed.

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