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. What is the threshold of dextrose concentrations that can safely be administered through a peripheral IV?

• A. Dextrose concentrations below 20% can be safely administered through a peripheral IV; dextrose concentrations above 20% should not be administered through a peripheral IV.
• B. Dextrose concentrations below 5% can be safely administered through a peripheral IV; dextrose concentrations above 5% should not be administered through a peripheral IV.
• C. Dextrose concentrations below 10% can be safely administered through a peripheral IV; dextrose concentrations above 10% should not be administered through a peripheral IV.
• D. Dextrose concentrations above 5% can be safely administered through a peripheral IV; dextrose concentrations below 5% should not be administered through a peripheral IV.

Correct answer: C

Rationale: Dextrose concentrations below 10% are considered safe for administration through a peripheral IV, as concentrations above this threshold can lead to phlebitis, causing inflammation of the vein. Concentrations above 10% should not be administered through a peripheral IV to prevent vein irritation. Choice A is incorrect because concentrations above 20% are too high for a peripheral IV. Choice B is incorrect as dextrose concentrations below 5% are too low to be effective. Choice D is incorrect because the statement is reversed, suggesting that concentrations above 5% are safe, which is not true.

3. When performing an abdominal assessment, what is the correct order of the tasks?

• A. inspect, percuss, palpate, auscultate
• B. inspect, palpate, percuss, auscultate
• C. inspect, auscultate, percuss, palpate
• D. inspect, palpate, auscultate, percuss

Correct answer: C

Rationale: The correct order of tasks when performing an abdominal assessment is to first inspect the abdomen visually, then auscultate to assess bowel sounds without altering them, followed by percussing to assess the presence of tympany or dullness, and finally palpating to feel for any tenderness, masses, or organ enlargement. Placing palpation or percussion before auscultation, as in choices A, B, and D, can affect the bowel sounds and examination findings, making them incorrect sequences.

4. A pregnant client asks how she can prevent getting Group B Strep. What is the LPN's best response?

• A. You cannot prevent getting Group B Strep; you can only treat it.
• B. You should have your partner wear a condom every time you have intercourse.
• C. You should be extra vigilant about hand-washing, especially in the third trimester.
• D. The Group B Strep vaccine is the only proven way to prevent the disease.

Correct answer: A

Rationale: The best response for the LPN to provide to a pregnant client concerned about preventing Group B Strep is that it cannot be prevented, only treated. Group B Strep is a normal flora found in the vagina, rectum, and intestines of about 25% of women and is not a sexually transmitted disease. Testing for Group B Strep is done in each pregnancy, usually around 35-37 weeks. If a woman tests positive, antibiotics are administered during labor to reduce the risk of complications for both the mother and the baby. Choice A is the correct answer as Group B Strep cannot be prevented but only treated. Choice B is incorrect; condom use does not prevent Group B Strep. Choice C is not the best response as hand-washing is important for general hygiene but does not specifically prevent Group B Strep. Choice D is incorrect as there is no vaccine available to prevent Group B Strep.

5. How often should the intravenous tubing on total parenteral nutrition solutions be changed?

• A. every 24 hours
• B. every 36 hours
• C. every 48 hours
• D. every 72 hours

Correct answer: A

Rationale: The correct answer is to change the intravenous tubing on total parenteral nutrition solutions every 24 hours. This frequency is necessary due to the high risk of bacterial growth associated with TPN solutions. Changing the tubing every 24 hours helps prevent contamination and bloodstream infections. Choices B, C, and D are incorrect because waiting longer intervals increases the risk of introducing harmful bacteria into the patient's system, leading to potentially severe complications.

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