Nursing Elites

1. What can cause a low pulse oximetry reading?

• A. Hyperthermia
• B. Increased hemoglobin level
• C. Inadequate peripheral circulation
• D. Low altitudes

Correct answer: C

Rationale: Inadequate peripheral circulation can cause a low pulse oximetry reading by limiting blood flow to the area being measured, leading to inaccurate oxygen saturation readings. Hyperthermia (choice A) is an elevated body temperature and does not directly affect pulse oximetry readings. An increased hemoglobin level (choice B) would actually lead to higher oxygen-carrying capacity in the blood, resulting in normal or increased pulse oximetry readings. Low altitudes (choice D) typically do not cause low pulse oximetry readings unless there are other underlying conditions affecting oxygen levels.

2. A client with severe preeclampsia is receiving magnesium sulfate intravenously. Which action should the nurse take when toxicity occurs?

• A. Position the client supine
• B. Prepare an IV bolus of dextrose 5%
• C. Administer calcium gluconate IV
• D. Administer methylergonovine IM

Correct answer: C

Rationale: When toxicity from magnesium sulfate occurs, the nurse should administer calcium gluconate IV as it is the antidote for magnesium sulfate toxicity. Positioning the client supine may not address the toxicity issue. Administering dextrose 5% is not the appropriate intervention for magnesium sulfate toxicity. Methylergonovine is used to manage postpartum hemorrhage and is not indicated for magnesium sulfate toxicity.

3. A nurse is assessing a client for signs of deep vein thrombosis (DVT). Which of the following findings should the nurse look for?

• A. Swelling in the limb
• B. Decreased heart rate
• C. Increased appetite
• D. Improved mobility

Correct answer: A

Rationale: The correct answer is A: Swelling in the limb. Swelling, particularly in one limb, is a common sign of deep vein thrombosis (DVT) and should be assessed. This swelling is often accompanied by pain, redness, and warmth in the affected area. Choices B, C, and D are incorrect because decreased heart rate, increased appetite, and improved mobility are not typically associated with DVT. The main focus in assessing for DVT is recognizing the signs and symptoms related to venous thrombosis.

4. A client is being educated by a nurse about the use of bupropion. Which of the following should be included?

• A. It can cause weight gain
• B. It may increase seizure risk
• C. It is an SSRI
• D. It has no side effects

Correct answer: B

Rationale: The correct answer is B. Bupropion may lower the seizure threshold, increasing the risk of seizures, especially in clients with a history of seizures. Choice A is incorrect because bupropion is associated with weight loss rather than weight gain. Choice C is incorrect as bupropion is not an SSRI; it is an aminoketone antidepressant. Choice D is incorrect as bupropion, like all medications, can have side effects, and it is essential for clients to be aware of them.

5. A nurse is assessing a client who has a chest tube following a thoracotomy. Which of the following findings requires intervention by the nurse?

• A. Tidaling with spontaneous respirations
• B. Drainage collection chamber is 1/3 full
• C. 1 cm of water present in the water seal chamber
• D. Suction chamber pressure of -20 cm H2O

Correct answer: C

Rationale: The correct answer is C. There should be 2 cm of water in the water seal chamber of the chest tube system. A level of 1 cm may indicate a leak or compromised functionality that requires intervention. Choices A, B, and D are not findings that necessarily require immediate intervention. Tidaling with spontaneous respirations is an expected finding, the drainage collection chamber being 1/3 full is within normal limits, and a suction chamber pressure of -20 cm H2O indicates appropriate suction for chest drainage.

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