Nursing Elites

1. A client has been receiving cyanocobalamin (B12) injections for the past 6 weeks. Which laboratory finding indicates that the medication is having the desired effect?

• A. Neutrophil count of 60%
• B. Basophil count of 0.5%
• C. Monocyte count of 2%
• D. Reticulocyte count of 1%

Correct answer: D

Rationale: Cyanocobalamin is a B12 medication used for pernicious anemia. A reticulocyte count of 1% indicates the desired effect of the medication, as reticulocytes are immature red blood cells that increase in response to B12 therapy, improving anemia. Neutrophils, basophils, and monocytes are white blood cells and are not directly influenced by B12 injections, making them incorrect choices.

2. Which system is primarily affected by tuberculosis (Mycobacterium)?

• A. stomach (GI)
• B. heart (cardiac)
• C. lungs (respiratory)
• D. skin (integumentary)

Correct answer: C

Rationale: Tuberculosis, caused by Mycobacterium tuberculosis, primarily affects the respiratory system. This aerobic bacillus thrives in highly oxygenated body sites, such as the lungs, growing ends of bones, and the brain. The bacillus is airborne, making the lungs a common site for infection. Choices A, B, and D are incorrect as tuberculosis predominantly impacts the respiratory system and rarely involves the stomach, heart, or skin.

3. A patient has fallen off a bicycle and fractured the head of the proximal fibula. A cast was placed on the patient's lower extremity. Which of the following is the most probable result of the fall?

• A. Peroneal nerve injury
• B. Tibial nerve injury
• C. Sciatic nerve injury
• D. Femoral nerve injury

Correct answer: A

Rationale: The correct answer is peroneal nerve injury. The head of the proximal fibula is in close proximity to the peroneal nerve, making it susceptible to injury when there is a fracture. The peroneal nerve runs along the fibula and can be affected by trauma to this area. Choice B, tibial nerve injury, is incorrect as the fracture site is closer to the peroneal nerve, not the tibial nerve. Choice C, sciatic nerve injury, is incorrect as the injury is more localized to the fibular head area where the peroneal nerve is affected. Choice D, femoral nerve injury, is incorrect as the femoral nerve is not immediately adjacent to the proximal fibula and is not typically affected by this type of injury.

4. After a left heart catheterization (LHC), a client complains of severe foot pain on the side of the femoral stick. The nurse notes pulselessness, pallor, and a cold extremity. What should the nurse's next action be?

• A. Administer an anticoagulant.
• B. Warm the room and re-assess.
• C. Increase IV fluids.
• D. Notify the physician stat.

Correct answer: D

Rationale: The correct action for the nurse to take next is to notify the physician immediately (stat). The client's symptoms of foot pain, pulselessness, pallor, and cold extremity suggest a potential vascular complication, such as arterial occlusion. Prompt notification of the physician is crucial as this condition requires urgent intervention to restore blood flow and prevent tissue damage. Administering an anticoagulant (Choice A) without physician evaluation could be harmful as the underlying cause needs to be determined first. Warming the room and re-assessing (Choice B) may delay necessary treatment. Increasing IV fluids (Choice C) is unlikely to address the urgent vascular issue indicated by the symptoms described.

5. A 64-year-old Alzheimer's patient has exhibited excessive cognitive decline resulting in harmful behaviors. The physician orders restraints to be placed on the patient. Which of the following is the appropriate procedure?

• A. Secure the restraints to the bed rails on all extremities.
• B. Notify the physician that restraints have been placed properly.
• C. Communicate with the patient and family the need for restraints.
• D. Position the head of the bed at a 45-degree angle.

Correct answer: C

Rationale: In cases where restraints are considered necessary for a patient, it is crucial to communicate effectively with both the patient and their family about the reasons for this decision. This helps ensure that all parties involved understand the necessity of restraints and are informed about the potential risks and benefits. Option A, securing restraints to the bed rails on all extremities, is not appropriate as it does not involve proper communication or ethical considerations. Option B, notifying the physician that restraints have been placed properly, overlooks the importance of patient and family involvement in decision-making. Option D, positioning the head of the bed at a 45-degree angle, is unrelated to the use of restraints and does not address the situation at hand.

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