A nurse is preparing to perform a bladder catheterization for a patient with urinary retention. What action should the nurse prioritize to minimize the risk of infection?

Correct Answer: D

Rationale: Using aseptic technique and sterile equipment during catheter insertion is crucial for minimizing the risk of infection during bladder catheterization. Aseptic technique involves maintaining a sterile field, washing hands thoroughly, using sterile gloves, and ensuring that all equipment used is sterile. By following these practices, the nurse can prevent introducing bacteria into the urinary tract, reducing the likelihood of infection in the patient. While cleansing the perineal area with antiseptic solutions is important for general hygiene, the priority for infection prevention during catheterization lies in maintaining a sterile environment during the procedure. Administering prophylactic antibiotics is not routinely recommended for catheterization unless there are specific risk factors present.

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.

Correct Answer: C

Rationale: Ménière's disease is characterized by the triad of symptoms including progressive sensorineural hearing loss, tinnitus, and vertigo. The audiometric testing in Ménière's disease often shows a "carrot-shaped" configuration, which refers to low-frequency hearing loss initially and eventually spreading to involve higher frequencies. This distinctive pattern of hearing loss helps differentiate Ménière's disease from other causes like Presbycusis (age-related hearing loss) or Noise-induced hearing loss. Acoustic neuroma can present with unilateral sensorineural hearing loss but typically does not exhibit the specific "carrot-shaped" configuration seen in Ménière's disease.