Nursing Elites

1. A female patient with atrial fibrillation has the following lab results: Hemoglobin of 11 g/dl, a platelet count of 150,000, an INR of 2.5, and potassium of 2.7 mEq/L. Which result is critical and should be reported to the physician immediately?

• A. Hemoglobin of 11 g/dl
• B. Platelet count of 150,000
• C. INR of 2.5
• D. Potassium of 2.7 mEq/L

Correct answer: D

Rationale: The critical lab result that should be reported to the physician immediately in this case is the potassium level of 2.7 mEq/L. A potassium imbalance, especially in a patient with a history of dysrhythmia like atrial fibrillation, can be life-threatening and lead to cardiac distress. Low potassium levels (hypokalemia) can predispose the patient to dangerous arrhythmias, including worsening atrial fibrillation. Hemoglobin of 11 g/dl, platelet count of 150,000, and an INR of 2.5 are within acceptable ranges and not as immediately concerning as a low potassium level in this clinical context.

2. A patient with a history of diabetes mellitus is on the second postoperative day following cholecystectomy. She has complained of nausea and isn't able to eat solid foods. The nurse enters the room to find the patient confused and shaky. Which of the following is the most likely explanation for the patient's symptoms?

• A. Anesthesia reaction
• B. Hyperglycemia
• C. Hypoglycemia
• D. Diabetic ketoacidosis

Correct answer: C

Rationale: In a postoperative diabetic patient who is unable to eat solid foods, the likely cause of symptoms such as confusion and shakiness is hypoglycemia. Confusion and shakiness are common manifestations of hypoglycemia. Insufficient glucose supply to the brain (neuroglycopenia) can lead to confusion, difficulty with concentration, irritability, hallucinations, focal impairments like hemiplegia, and, in severe cases, coma and death. Anesthesia reaction (Choice A) is less likely in this scenario as the patient is already on the second postoperative day. Hyperglycemia (Choice B) is unlikely given the patient's symptoms and history of not eating. Diabetic ketoacidosis (Choice D) typically presents with hyperglycemia, ketosis, and metabolic acidosis, which are not consistent with the patient's current symptoms of confusion and shakiness.

3. Which oxygen delivery system would provide the highest concentrations of oxygen to the client?

• A. Venturi mask
• B. Partial rebreather mask
• C. Non-rebreather mask
• D. Simple face mask

Correct answer: C

Rationale: The correct answer is the non-rebreather mask. This oxygen delivery system has a one-way valve that prevents exhaled air from entering the reservoir bag and one or more valves covering the air holes on the face mask itself to prevent the inhalation of room air but allow exhalation of air. When a tight seal is achieved around the mask, up to 100% of oxygen is available. Choice A, the Venturi mask, delivers precise oxygen concentrations but not as high as the non-rebreather mask. Choice B, the partial rebreather mask, allows the client to rebreathe some exhaled air, resulting in lower oxygen concentrations than the non-rebreather mask. Choice D, the simple face mask, delivers low to moderate oxygen concentrations and is not designed to provide the highest concentrations like the non-rebreather mask.

4. The parents of a newborn with hypospadias are reviewing the treatment plan with the nurse. Which statement by the parents indicates their understanding of the plan?

• A. Caution should be used when straddling my infant on a hip.
• B. Vital signs should be taken daily to check for bladder infection.
• C. Catheterization will be necessary when my infant does not void.
• D. Circumcision has been delayed to save tissue for surgical repair.

Correct answer: D

Rationale: Hypospadias is a congenital defect involving abnormal placement of the urethral orifice of the penis. In hypospadias, the urethral orifice is located below the glans penis along the ventral surface. It's important not to circumcise the infant, as the dorsal foreskin tissue will be required for surgical repair of the hypospadias. Option A is unrelated to the treatment plan for hypospadias. Option B is not directly related to the surgical repair of hypospadias. Option C is not a routine part of the treatment plan for hypospadias, as catheterization is usually managed by healthcare professionals.

5. A patient presents to the office with a pencil that has completely penetrated the palm of her hand. Which of the following treatments would be BEST in this situation?

• A. Assist the doctor while he sedates the patient and removes the pencil from her hand.
• B. Have the patient gently pull the pencil out of her hand and assist the physician with stitches.
• C. Wrap a gauze around the pencil, securing it as much as possible until the patient can get to a local emergency room.
• D. Tell the patient to go to the local emergency room. With a doctor's order, give the patient some aspirin for the pain.

Correct answer: C

Rationale: Penetrating wounds that leave an object behind may have damaged important blood vessels. Removing the object may lead to significant bleeding. The correct approach is to gently wrap the wound with the object in place to help control bleeding and prevent further injury. The patient should be taken promptly to the nearest emergency room where healthcare professionals can safely and appropriately remove the object and provide necessary treatment. Choice A is incorrect because removing the pencil without proper medical evaluation can worsen the injury. Choice B is incorrect because pulling out the object can cause additional damage and bleeding. Choice D is incorrect because giving aspirin without knowing the extent of the injury and causing potential drug interactions can be harmful.

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