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: Albuterol (salbutamol) is a short-acting beta agonist bronchodilator commonly used for quick relief of bronchoconstriction in patients with COPD. It works by relaxing the smooth muscles in the airways, allowing for easier breathing and improved airflow. The patient's increased dyspnea, wheezing, and productive cough are indicative of bronchoconstriction, and albuterol is the most appropriate medication to provide rapid bronchodilation and symptom relief in this situation. Diphenhydramine (Benadryl) is an antihistamine and not typically used for bronchodilation in COPD. Montelukast (Singulair) is a leukotriene receptor antagonist that may be used in the maintenance treatment of COPD but is not the initial choice for acute symptom relief. Prednisone is a cortic

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: After activating the emergency response system, the immediate priority in CPR is to begin chest compressions to support blood circulation. High-quality chest compressions are crucial in providing oxygen to vital organs, especially the brain, during cardiac arrest. Starting chest compressions promptly can improve the chances of survival for the person in need of CPR. Checking for breathing, performing abdominal thrusts, or assessing pulse should only be done after initiating chest compressions in the CPR sequence.

Correct Answer: D

Rationale: Scabies is caused by an infestation of the microscopic mite Sarcoptes scabiei. This parasitic mite burrows into the upper layer of the skin, where it lays eggs and causes intense itching and skin irritation. The transmission of scabies usually occurs through close and prolonged skin-to-skin contact with an infested person. Unlike viruses, bacteria, and fungi, which are microorganisms that can also cause skin infections, scabies specifically refers to an infestation by a parasitic mite.