Nursing Elites

1. What are the main differences between a stroke caused by ischemia and one caused by hemorrhage?

• A. Blockage in a blood vessel supplying the brain
• B. Bleeding in the brain due to a ruptured aneurysm
• C. Administering thrombolytics if within the treatment window
• D. Avoiding anticoagulants and preparing for surgery

Correct answer: A

Rationale: The correct answer is A: "Blockage in a blood vessel supplying the brain." Ischemic stroke is caused by a blockage in a blood vessel supplying the brain, leading to reduced blood flow. Hemorrhagic stroke, on the other hand, is caused by bleeding in the brain due to a ruptured blood vessel. Choices B, C, and D are incorrect. Administering thrombolytics, avoiding anticoagulants, and preparing for surgery are specific management strategies that may apply to ischemic or hemorrhagic strokes but do not define the main differences between the two types of strokes.

2. A nurse is monitoring an older adult female client who had a myocardial infarction (MI) for the development of an acute kidney injury (AKI). Which of the following findings should the nurse identify as indicating an increased risk of AKI?

• A. Magnesium 2.0 mEq/L
• B. Blood urea nitrogen (BUN) 20 mg/dL
• C. Serum Osmolality 290 mOsm/kg H2O
• D. Serum creatinine 1.8 mg/dL

Correct answer: D

Rationale: An elevated serum creatinine level (1.8 mg/dL) is a significant indicator of potential kidney impairment. In acute kidney injury (AKI), serum creatinine levels rise due to decreased kidney function, reflecting the kidneys' inability to effectively filter waste from the blood. Magnesium level, BUN, and serum osmolality are not direct indicators of kidney function or risk of AKI. Magnesium levels are more related to electrolyte balance, BUN can be affected by factors other than kidney function, and serum osmolality reflects the concentration of solutes in the blood, not specifically kidney function.

3. When administering a subcutaneous injection of insulin to a client, what angle should the nurse use for the injection?

• A. 45-degree angle
• B. 60-degree angle
• C. 90-degree angle
• D. 30-degree angle

Correct answer: C

Rationale: The correct angle for administering a subcutaneous injection, such as insulin, is 90 degrees. This angle allows for the medication to be delivered into the subcutaneous layer of tissue beneath the skin. A 45-degree angle is typically used for administering subcutaneous injections in infants or those with reduced adipose tissue, while a 60-degree angle is commonly used for intramuscular injections. A 30-degree angle is not a standard angle for subcutaneous injections.

4. Which intervention is most effective in preventing deep vein thrombosis (DVT) in a postoperative patient?

• A. Encourage the patient to drink plenty of fluids.
• B. Encourage early ambulation and leg exercises.
• C. Administer anticoagulants as prescribed.
• D. Apply compression stockings to the patient's legs.

Correct answer: B

Rationale: The most effective intervention in preventing deep vein thrombosis (DVT) in a postoperative patient is to encourage early ambulation and leg exercises. Early ambulation helps promote circulation, preventing stasis and reducing the risk of blood clot formation. Encouraging the patient to drink plenty of fluids (choice A) is important for overall health but is not the most effective intervention for preventing DVT. Administering anticoagulants (choice C) is a valuable intervention in some cases, but it may not be suitable for all postoperative patients. Applying compression stockings (choice D) can help prevent DVT but is generally not as effective as early ambulation and leg exercises in postoperative patients.

5. A nurse is assessing a postoperative patient for signs of infection. Which finding is most concerning?

• A. Mild redness at the incision site.
• B. Increased drainage from the surgical site.
• C. Fever of 101°F.
• D. Normal white blood cell count.

Correct answer: C

Rationale: A fever of 101°F is the most concerning finding when assessing a postoperative patient for signs of infection. Fever can indicate an inflammatory response to an infection, and in a postoperative patient, it can signal a surgical site infection or a systemic infection. Prompt attention is necessary to prevent complications such as sepsis. Mild redness at the incision site and increased drainage can be expected in the early postoperative period due to the normal healing process. A normal white blood cell count does not rule out infection as it can be influenced by various factors, and some infections may not initially cause a rise in white blood cells.

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