When should healthcare professionals perform hand hygiene?

Correct Answer: A

Rationale: Healthcare professionals should perform hand hygiene before and after patient contact to prevent the spread of infections. While choices B, C, and D are also important times to practice hand hygiene, they are not as crucial as before and after patient contact because patient contact poses a higher risk of transmitting infections.

Correct Answer: A

Rationale: The correct answer is Lisinopril. Lisinopril is an ACE inhibitor commonly prescribed to patients with hypertension to manage their blood pressure. Metformin is used to treat type 2 diabetes, not hypertension (choice B). Atorvastatin is a statin used to lower cholesterol levels, not primarily prescribed for hypertension (choice C). Aspirin is used for its antiplatelet effects and in preventing cardiovascular events, but it is not a first-line treatment for hypertension (choice D). Therefore, Lisinopril is the most suitable choice for a patient with hypertension.

Correct Answer: D

Rationale: Giving a bowel prep solution is essential to clean out the colon thoroughly before a colonoscopy. This process is crucial as it helps to achieve a clear view of the colon during the procedure. Providing clear instructions on diet (Choice A) and ensuring the patient has an empty stomach (Choice C) are important steps in the preparation process but may not be sufficient on their own to adequately cleanse the colon. Explaining the procedure in detail (Choice B) is helpful for patient education but does not directly contribute to the physical preparation required for a successful colonoscopy.

Correct Answer: C

Rationale: Suctioning the tracheostomy regularly is crucial in caring for a patient with a tracheostomy as it helps keep the airway clear of secretions, preventing blockages and potential complications. Cleaning the tracheostomy site daily is important for hygiene but not as critical as regular suctioning. Changing the tracheostomy ties daily may not be necessary unless soiled or loose. Providing humidified oxygen may be part of the care plan but is not as directly related to maintaining the tracheostomy patency as suctioning.

Correct Answer: A

Rationale: The correct answer is to administer calcium gluconate. In hyperkalemia, the priority is to protect the heart from potential complications like arrhythmias. Calcium gluconate is the first-line treatment as it stabilizes the cardiac cell membrane. Insulin (Choice B) and sodium bicarbonate (Choice C) can be used in conjunction with other treatments to shift potassium into cells, but calcium gluconate is the priority. Administering a diuretic (Choice D) is not the primary intervention for hyperkalemia and can even worsen the condition by reducing potassium excretion.