A nurse is preparing to administer a nasogastric (NG) tube feeding for a patient. What action should the nurse prioritize before initiating tube feeding?

Correct Answer: C

Rationale: The nurse should prioritize checking the patency of the NG tube by aspirating gastric contents before initiating tube feeding. This is important to ensure that the NG tube is in the correct position and that it is functioning properly. By aspirating gastric contents, the nurse can confirm that the tube is in the stomach and not in the lungs or surrounding tissues. If no gastric contents are obtained upon aspiration, it may indicate that the tube is not properly placed or may be occluded, which would require further assessment and intervention before proceeding with tube feeding. Checking the patency of the NG tube is a crucial step in ensuring the safety and effectiveness of enteral nutrition delivery.

Correct Answer: B

Rationale: The most critical action to prioritize for ensuring patient safety during a cardiopulmonary exercise stress test is to monitor the patient's electrocardiogram (ECG) rhythm continuously during the test (Option B). This monitoring allows the healthcare team to promptly detect any abnormal heart rhythms or signs of cardiac distress, enabling timely intervention if necessary. Continuous ECG monitoring is essential during exercise testing as it helps in assessing the heart's response to physical activity and identifying any potential cardiac abnormalities or complications that may arise during the test. By closely monitoring the ECG rhythm, the nurse can ensure the patient's safety and well-being throughout the procedure. Administering a beta-blocker medication before the test (Option A) may be indicated in some cases but is not as crucial as continuous ECG monitoring during the test. Encouraging the patient to consume a heavy meal before the test (Option C) is contraindicated as it can interfere with the accuracy of the results

Correct Answer: A

Rationale: The described presentation of a pruritic, annular rash with central clearing and a raised, scaly border that spreads outward in a centrifugal pattern is characteristic of tinea corporis, commonly known as ringworm. This fungal infection affects the skin and is typically ring-shaped, with a well-defined, slightly raised, and scaly border. The central area often clears as the lesion enlarges peripherally, resembling a ring. It is important to note that ringworm is not caused by a worm but by a fungus. Treatment typically involves antifungal medications applied topically or taken orally, depending on the severity of the infection.

Correct Answer: B

Rationale: Molluscum contagiosum is a viral skin infection caused by the poxvirus. It typically presents as multiple dome-shaped, translucent papules with central umbilication on the face and trunk. The lesions are usually asymptomatic but can be itchy. Molluscum contagiosum is a common infection in children but can also occur in adults, especially those who are immunocompromised. The lesions can gradually increase in number over time. Basal cell carcinoma, sebaceous hyperplasia, and keratoacanthoma do not typically present with the characteristic features of molluscum contagiosum.

Correct Answer: A

Rationale: The description of multiple flesh-colored papular lesions with a central dell that tend to bleed upon minor trauma and have been increasing in number over time is characteristic of basal cell carcinoma. Basal cell carcinoma is the most common type of skin cancer and typically presents as pearly or flesh-colored papules with telangiectasias (tiny blood vessels) and a characteristic central dell or ulceration. This type of skin cancer often occurs on sun-exposed areas like the face and trunk and can manifest as slow-growing lesions that may bleed easily with minor trauma. In contrast, squamous cell carcinoma typically presents as a scaly or crusted lesion, seborrheic keratosis is a benign skin growth with a waxy, stuck-on appearance, and actinic keratosis is a precancerous lesion characterized by rough, scaly patches on sun-exposed areas.