Nursing Elites

1. What lab value should a healthcare provider monitor for a patient on warfarin therapy?

• A. Potassium
• B. PT/INR
• C. Sodium
• D. Calcium

Correct answer: B

Rationale: The correct answer is B: PT/INR. When a patient is on warfarin therapy, healthcare providers monitor the PT/INR levels to evaluate the effectiveness of the treatment and assess the risk of bleeding. Monitoring potassium, sodium, or calcium levels is not directly related to warfarin therapy and would not provide the necessary information needed to manage the medication effectively.

2. A nurse is caring for an infant who has a prescription for continuous pulse oximetry. Which of the following is an appropriate action for the nurse to take?

• A. Place the infant under a radiant warmer
• B. Move the probe site every 3 hours
• C. Heat the skin one minute prior to placing the probe
• D. Place a sensor on the index finger

Correct answer: B

Rationale: The correct answer is to move the probe site every 3 hours. This action helps prevent skin breakdown and ensures accurate readings. Placing the infant under a radiant warmer (Choice A) is not necessary for pulse oximetry monitoring. Heating the skin before placing the probe (Choice C) can potentially cause burns in infants. Placing a sensor on the index finger (Choice D) is not the standard practice for continuous pulse oximetry in infants.

3. A nurse is preparing to administer heparin subcutaneously to a client. Which of the following actions should the nurse take?

• A. Use a 21-gauge needle for injection.
• B. Inject the medication into the client's deltoid muscle.
• C. Administer the medication within 5 cm (2 in) of the umbilicus.
• D. Massage the injection site after administration.

Correct answer: C

Rationale: The correct action the nurse should take when preparing to administer heparin subcutaneously is to administer the medication within 5 cm (2 in) of the umbilicus. This practice ensures proper subcutaneous delivery of the medication. Choice A is incorrect because a smaller gauge needle, typically 25-26 gauge, is used for subcutaneous injections. Choice B is incorrect as heparin should not be injected into the deltoid muscle but rather into fatty tissue. Choice D is incorrect as massaging the injection site after administration can lead to tissue irritation or bruising.

4. A nurse is teaching a newly licensed nurse about using a portable oxygen system. What instruction should the nurse include?

• A. The oxygen should be kept in a storage room when not in use.
• B. Turn off the oxygen when not in use.
• C. Check the oxygen level regularly using a pulse oximeter.
• D. Never leave the oxygen running when transporting a client.

Correct answer: C

Rationale: The correct answer is to check the oxygen level regularly using a pulse oximeter. This instruction is crucial as it ensures safe and adequate oxygenation for the client. Option A is incorrect as oxygen should not be stored in a storage room but in a well-ventilated area. Option B is not ideal as oxygen should be left on unless otherwise specified by a healthcare provider. Option D is also important but not directly related to the primary instruction of monitoring oxygen levels.

5. A healthcare provider is reviewing the medical record of a client who has Cushing's disease. Which of the following findings should the healthcare provider expect?

• A. Decreased serum glucose level
• B. Increased lymphocyte count
• C. Increased serum potassium level
• D. Decreased serum sodium level

Correct answer: C

Rationale: In Cushing's disease, there is increased cortisol production, which can lead to various metabolic disturbances. One of the common findings is an increased serum potassium level. The other options are incorrect because Cushing's disease typically causes hyperglycemia, not decreased serum glucose levels (A), lymphocytopenia, not increased lymphocyte count (B), and hyponatremia, not decreased serum sodium level (D).

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