Nursing Elites

1. Based on the information given, which patient would be an appropriate candidate for a closed MRI without contrast?

• A. A 20-year-old woman with unexplained joint pain and a low BMI.
• B. A 35-year-old woman with Multiple Sclerosis who is trying to conceive.
• C. A 67-year-old man who had open-heart surgery 4 years ago.
• D. A 40-year-old woman in a hypomanic state for the last 2 days.

Correct answer: A

Rationale: The correct answer is the 20-year-old woman with unexplained joint pain and a low BMI. MRI can be used to diagnose musculoskeletal disorders, and this patient has no contraindications to an MRI. Choice B is incorrect because using MRI without contrast may not be ideal for a patient trying to conceive. Choice C is incorrect as the patient's past open-heart surgery may pose risks for an MRI without contrast. Choice D is incorrect since the patient's hypomanic state does not indicate a need for an MRI without contrast for joint pain.

2. The nursing care plan for a toddler diagnosed with Kawasaki Disease (mucocutaneous lymph node syndrome) should be based on the high risk for development of which problem?

• A. Chronic vessel plaque formation
• B. Pulmonary embolism
• C. Occlusions at the vessel bifurcations
• D. Coronary artery aneurysms

Correct answer: A

Rationale: The correct answer is chronic vessel plaque formation. Kawasaki Disease affects small and medium-sized blood vessels, leading to progressive inflammation and potential damage to the walls of medium-sized muscular arteries, which can result in coronary artery aneurysms. While other complications such as pulmonary embolism and occlusions at vessel bifurcations can occur in different conditions, for Kawasaki Disease, the primary concern is the development of chronic vessel plaque formation.

3. Which action will the nurse include in the plan of care for a patient who has been diagnosed with chronic hepatitis B?

• A. Advise limiting alcohol intake to 1 drink daily
• B. Schedule for liver cancer screening every 6 months
• C. Initiate administration of the hepatitis C vaccine series
• D. Monitor anti-hepatitis B surface antigen (anti-HBs) levels annually

Correct answer: B

Rationale: Patients diagnosed with chronic hepatitis B are at a higher risk for developing liver cancer. Therefore, it is essential to schedule them for liver cancer screening every 6 to 12 months to detect any potential malignancies at an early stage. Advising patients to limit alcohol intake is crucial as alcohol can exacerbate liver damage; thus, patients with chronic hepatitis B are advised to completely avoid alcohol. Administering the hepatitis C vaccine is irrelevant for a patient diagnosed with chronic hepatitis B since it is a different virus. Monitoring anti-hepatitis B surface antigen (anti-HBs) levels annually is not necessary as the presence of anti-HBs indicates a past hepatitis B infection or vaccination, and it does not require regular monitoring.

4. Which of the following can cause coup-contrecoup injuries?

• A. Rotational forces
• B. Deformation forces
• C. Deceleration forces
• D. Acceleration forces

Correct answer: C

Rationale: Deceleration forces occur when the head is moving and abruptly comes to a stop, such as in a car crash. This sudden deceleration can cause the brain to hit against the skull, resulting in coup-contrecoup injuries. In a coup-contrecoup injury, the brain is damaged on opposite sides due to the initial impact and the rebound effect inside the skull. Rotational forces usually result in diffuse axonal injuries rather than coup-contrecoup injuries. Deformation forces can cause focal brain injuries but not coup-contrecoup injuries. Acceleration forces typically lead to diffuse brain injuries, not coup-contrecoup injuries. Therefore, the correct answer is deceleration forces.

5. The nurse analyzes the results of a patient's arterial blood gases (ABGs). Which finding would require immediate action?

• A. The bicarbonate level (HCO3) is 31 mEq/L
• B. The arterial oxygen saturation (SaO2) is 92%
• C. The partial pressure of CO2 in arterial blood (PaCO2) is 31 mm Hg
• D. The partial pressure of oxygen in arterial blood (PaO2) is 59 mm Hg

Correct answer: D

Rationale: While all the values are abnormal, the low PaO2 level of 59 mm Hg indicates that the patient is at a critical point on the oxyhemoglobin dissociation curve. At this level, a small decrease in PaO2 can lead to a significant drop in oxygen saturation and compromise tissue oxygenation. Therefore, immediate intervention is necessary to improve the patient's oxygenation status. Choice A (HCO3 of 31 mEq/L) may indicate metabolic alkalosis or compensation for respiratory acidosis; however, it does not require immediate action in this scenario. Choice B (SaO2 of 92%) is slightly low but not critically low to require immediate action. Choice C (PaCO2 of 31 mm Hg) is within the normal range and does not indicate immediate danger to the patient.

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