Correct Answer: D

Rationale: The lithotomy position is the most suitable position for procedures involving vaginal and cervical examination because it provides the best access to the vaginal and cervical regions. In this position, the patient lies on their back with their legs flexed and feet placed in stirrups, allowing for optimal visualization and access to the area. This position facilitates proper examination, diagnosis, and treatment when working in the gynecological field. Choices A, B, and C are incorrect as they do not provide the necessary exposure and access required for a thorough vaginal and cervical examination. Dorsal recumbent, side lying, and supine positions may limit visibility and hinder the examination process in such cases.

Correct Answer: B

Rationale: A low-sodium diet is most recommended for patients with heart failure. This type of diet helps manage fluid retention by reducing the amount of sodium in the body, which in turn decreases the workload on the heart. High-sodium diets can lead to fluid retention and worsen heart failure symptoms. High-fat and low-carbohydrate diets are not specifically recommended for heart failure patients as the focus is primarily on controlling sodium intake.

Correct Answer: A

Rationale: The correct answer is A. Hospitalized patients are at greater risk for drug-nutrient interactions because they are more acutely ill, often having multiple conditions and treatments that increase the risk of such interactions. Choice B is incorrect as hospital routines interfering with medication timing are not directly related to drug-nutrient interactions. Choice C is incorrect as the toxicity and side effects of drugs do not necessarily relate to interactions with nutrients. Choice D is incorrect as shared responsibility for monitoring does not directly contribute to the increased risk of drug-nutrient interactions in hospitalized patients.

Correct Answer: A

Rationale: Nurses typically collect blood specimens from patients as part of their everyday duties in medical settings. They are trained in venipuncture techniques and are responsible for ensuring that blood samples are properly obtained and labeled for diagnostic testing. Medical technologists process and analyze the blood specimens in the laboratory under the direction of a physician, but the actual collection of specimens is commonly performed by nurses. Physicians are primarily responsible for diagnosing and treating medical conditions rather than collecting blood specimens. Pharmacists are healthcare professionals who specialize in medication management and dispensing, not in collecting blood specimens.

Correct Answer: D

Rationale: The correct answer is D. Under the health services support area concept, medical care under MEDCOM is divided into eight geographical areas of responsibility. Each of these areas is designated as a health services support region, and they are further subdivided into two or more health service areas. Choices A, B, and C are incorrect because they do not accurately describe how the medical care under MEDCOM is divided.