foundations of nursing practice questions

Correct Answer: C

Rationale: The correct answer is C: Teaching patients to wear sunscreen, which is an example of primary prevention. Primary prevention aims to prevent the occurrence of a disease before it occurs by addressing risk factors. In this case, teaching patients to wear sunscreen helps prevent skin cancer by reducing exposure to harmful UV rays. Yearly Pap tests (A) are a secondary prevention measure for cervical cancer, detecting precancerous changes. Testicular self-examination (B) is a form of secondary prevention for testicular cancer, aiming to detect any abnormalities early. Screening mammograms (D) are also a secondary prevention measure for breast cancer, detecting tumors at an early stage.

Correct Answer: A

Rationale: The correct answer is A: Type I hypersensitivity reaction. This type of reaction involves the release of histamine from mast cells and basophils, leading to symptoms like hives. It is characterized by the involvement of IgE antibodies. In this case, the patient developed hives quickly after exposure to the allergen, indicating an immediate hypersensitivity reaction typical of Type I. Choices B, C, and D are incorrect because they are associated with different mechanisms and timeframes of hypersensitivity reactions. Type II involves antibody-mediated cell destruction, Type III involves immune complex deposition, and Type IV is a delayed-type hypersensitivity reaction mediated by T cells, none of which are consistent with the rapid onset of hives seen in this patient.

Correct Answer: C

Rationale: The correct answer is C: Western blot test. The Western blot test is considered the gold standard for confirming HIV diagnosis after a positive EIA result. It detects specific antibodies to HIV proteins, providing a more accurate confirmation. Other choices are incorrect because: A: Another EIA test would yield the same result as the initial EIA test. B: Viral load test measures the amount of virus in the blood and is not used to confirm HIV diagnosis. D: CD4/CD8 ratio is used to monitor immune status but not to confirm HIV diagnosis.

Correct Answer: A

Rationale: Correct Answer: A Rationale: Abdominal cramping in a patient on enteral feedings could indicate feeding intolerance. The nurse's initial action should be to slow down the rate of the tube feeding to allow the patient's gastrointestinal tract to adjust gradually. This helps reduce the risk of further complications and allows for better tolerance. Slowing the rate is a safe and effective intervention that can help alleviate the abdominal cramping without causing additional stress on the patient's digestive system. Summary of Incorrect Choices: B: Instilling cold formula is not a recommended practice and can potentially cause harm or discomfort to the patient. C: Changing to a high-fat formula may exacerbate the abdominal cramping as it can be harder to digest for some patients. D: Consulting with the healthcare provider about prokinetic medication should come after trying less invasive interventions such as slowing the rate of tube feeding.

Correct Answer: A

Rationale: Step-by-step rationale for why A is correct: 1. Retinal detachment causes traction on the retina. 2. Traction on the retina can stimulate photoreceptors. 3. Stimulation of photoreceptors can lead to perception of flashing lights. 4. Therefore, the characteristic symptom of retinal detachment is flashing lights in the visual field. Summary: B: Sudden eye pain is not a characteristic symptom of retinal detachment. C: Loss of color vision is not typically associated with retinal detachment. D: Colored halos around lights are more indicative of conditions like glaucoma or corneal edema, not retinal detachment.