Nursing Elites

1. When performing an eye examination, which area can a healthcare provider best visualize using an ophthalmoscope?

• A. Iris
• B. Cornea
• C. Optic disc
• D. Conjunctiva

Correct answer: C

Rationale: An ophthalmoscope is a tool used to visualize the internal structures of the eye during an examination. The optic disc, located on the internal surface of the retina, can be best visualized using an ophthalmoscope. The iris, cornea, and conjunctiva are superficial structures that can be examined without the need for an ophthalmoscope. Therefore, the correct answer is the optic disc. Choices A, B, and D are incorrect because they are external structures that can be examined directly without the use of an ophthalmoscope.

2. The nurse is teaching parents of a newborn about feeding their infant. Which of the following instructions should the nurse include?

• A. Use the defrost setting on microwave ovens to warm bottles.
• B. When refrigerating formula, discard partially used bottles after 24 hours.
• C. When using formula concentrate, mix one part water and one part concentrate.
• D. When using powdered formula, mix two parts water and one part powder.

Correct answer: A

Rationale: The correct answer is to use the defrost setting on microwave ovens to warm bottles. It is essential for parents to be cautious when warming bottles in a microwave oven to prevent superheating of the milk. Choosing the defrost setting and checking the formula temperature before giving it to the baby helps avoid burns. Discarding partially used bottles after 24 hours when refrigerating formula is crucial as it reduces the risk of harmful bacterial growth. Mixing formula concentrate with water in a 1:1 ratio of one part concentrate to one part water ensures proper dilution of the formula. On the other hand, powdered formula should be mixed following the package instructions, typically using two parts water to one part powder. This accurate mixing ratio provides the necessary balance of nutrients for the baby. Adding fresh formula to partially used bottles can introduce pathogens that may harm the infant, underscoring the importance of discarding partially used bottles and preparing formula correctly. Therefore, options B, C, and D are incorrect as they do not address the safe and proper ways to feed a newborn effectively.

3. Which of the following values should be monitored closely while a client is on total parenteral nutrition?

• A. calcium
• B. magnesium
• C. glucose
• D. cholesterol

Correct answer: C

Rationale: Glucose is the correct value to monitor closely while a client is on total parenteral nutrition. Total parenteral nutrition solutions have high glucose concentrations, necessitating monitoring to prevent complications like hyperglycemia. Calcium, magnesium, and cholesterol are not typically closely monitored during total parenteral nutrition as they are not directly related to the solution's composition or potential associated complications.

4. When removing hard contact lenses from an unresponsive client, what should the nurse do?

• A. Gently irrigate the eye with an irrigating solution from the inner canthus outward.
• B. Grasp the lens with a gentle pinching motion.
• C. Don sterile gloves before attempting the procedure.
• D. Ensure that the lens is centered on the cornea before gently manipulating the lids to release the lens.

Correct answer: D

Rationale: When removing hard contact lenses, it is crucial to ensure that the lens is correctly positioned on the cornea before removal. Directly grasping the lens can potentially scratch the cornea, so it is essential to gently manipulate the lids to release the lens safely. Gently irrigating the eye is unnecessary and could be harmful, especially without the client's cooperation. Wearing sterile gloves is also unnecessary for this specific procedure. Therefore, the correct approach is to ensure the proper positioning of the lens and then gently manipulate the lids to release it. Options A and C are incorrect because irrigating the eye and wearing sterile gloves are not necessary for contact lens removal. Option B is incorrect as directly grasping the lens can be harmful to the cornea.

5. How should a nurse listen to the breath sounds of a client?

• A. Ask the client to lie prone.
• B. Ask the client to breathe in and out through the nose.
• C. Hold the bell of the stethoscope lightly against the chest.
• D. Listen for at least one full respiration in each location on the chest.

Correct answer: D

Rationale: To best listen to breath sounds, the nurse should have the client sit, leaning slightly forward, with arms resting comfortably across the lap. The client should be instructed to breathe through the mouth a little deeper than usual, but to stop if feeling dizzy. The nurse should hold the flat diaphragm end piece of the stethoscope firmly against the client's chest wall. It is crucial to listen for at least one full respiration in each location on the chest to assess breath sounds accurately. Side-to-side comparison is essential in breath sound assessment. Therefore, options A, B, and C are incorrect as they do not align with the correct procedure for listening to breath sounds.

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