Correct Answer: A

Rationale: The correct answer is A: Avoid foods high in potassium. Potassium-rich foods can exacerbate gastritis symptoms by irritating the stomach lining. Sodium (choice B) is not directly related to gastritis symptoms. Increasing exercise (choice C) can be beneficial for overall health but may not directly impact gastritis. Drinking milk (choice D) can provide temporary relief for some individuals with gastritis due to its coating effect, but it is not a universal recommendation as it can worsen symptoms in some cases.

Correct Answer: A

Rationale: A CD4 T-cell count of less than 180 cells/mm3 is a priority for a patient with HIV because it indicates severe immunocompromise and an increased risk for opportunistic infections. Monitoring CD4 levels helps in assessing the immune status and guiding treatment decisions in patients with HIV. Albumin levels (choice B) are important for assessing nutritional status but are not a direct indicator of immune function in HIV patients. Potassium levels (choice C) and white blood cell count (choice D) are also important, but the CD4 T-cell count is specifically crucial for evaluating the immune function in individuals with HIV.

Correct Answer: A

Rationale: When continuous bubbling is observed in the chest tube water seal chamber, the correct intervention is to tighten the connections of the chest tube system. This can help resolve an air leak that is causing the continuous bubbling. Clamping the chest tube or replacing the entire chest tube system are not appropriate interventions in this scenario. Clamping the tube can lead to a dangerous buildup of pressure, while replacing the chest tube system may not be necessary if the issue can be resolved by simply tightening the connections. Continuing to monitor the chest tube without taking corrective action may lead to complications associated with the air leak.

Correct Answer: A

Rationale: The correct answer is to administer sublingual nitroglycerin. Nitroglycerin helps vasodilate coronary arteries, improving blood flow to the heart, relieving chest pain, and preventing cardiac tissue damage. Establishing IV access (choice B) is important but not the preferred initial treatment for unstable angina with chest pain. Auscultating heart sounds (choice C) and obtaining cardiac enzymes (choice D) are relevant assessments but do not address the immediate symptomatic relief needed for a patient with unstable angina and chest pain.

Correct Answer: A

Rationale: When a patient experiences abdominal cramping during enema administration, the healthcare professional should lower the height of the enema solution container. This action helps relieve the cramping by slowing down the flow of the enema solution, making it more comfortable for the patient. Stopping the procedure and removing the tubing (Choice B) may be necessary in some cases, but it should not be the first step when cramping occurs. Continuing the enema at a slower rate (Choice C) may exacerbate the cramping, so it is not the best course of action. Increasing the flow of the enema solution (Choice D) will likely worsen the cramping and should be avoided.