One function of the immune and lymphatic systems is to

Correct Answer: B

Rationale: The correct answer is B: Return fluid to the circulatory system. The lymphatic system collects excess fluid from tissues and returns it to the bloodstream to maintain fluid balance. It helps prevent edema and supports immune function by transporting white blood cells. A, C, and D are incorrect because: A: Providing reflex centers for respiration is a function of the nervous system, not the immune or lymphatic systems. C: Protecting internal organs is primarily the function of the skeletal system and organs themselves, not the immune or lymphatic systems. D: Absorbing nutrients is mainly the role of the digestive system, not the immune or lymphatic systems.

Correct Answer: C

Rationale: The correct answer is C: Never. Leaving a blank on a job application is generally not recommended as it may give the impression of being careless or unprepared. Providing as much information as possible is crucial for potential employers to assess your qualifications thoroughly. Leaving blanks can also result in your application being disqualified. Therefore, it is best to strive to complete all sections of a job application to the best of your ability. Choices A, B, and D are incorrect because in each of those scenarios, applicants should make an effort to provide alternative information or explanations instead of leaving the fields blank.

Correct Answer: B

Rationale: The correct answer is B: Establish a patient's baseline of normal function. Before surgery, it is crucial to assess the patient's baseline health status to identify any deviations from normal functioning that could affect the surgical outcome. This assessment helps in detecting any potential risks or complications during the surgical procedure. Options A, C, and D are not the priority because planning for care after the procedure, educating the patient and family, and gathering appropriate equipment are important but secondary to ensuring the patient's baseline health status is well understood before surgery.

Correct Answer: A

Rationale: The correct answer is A: Anesthesia lowers metabolism. Anesthesia can disrupt the body's ability to regulate temperature by suppressing the body's natural thermoregulation mechanisms, leading to hypothermia and shivering. Shivering is a common response to anesthesia-induced hypothermia as the body tries to generate heat. Choices B, C, and D are incorrect because surgical suites having air currents, the patient being dressed only in a gown, and the large open body cavity contributing to heat loss are not the primary causes of the patient's shivering in this context.

Correct Answer: C

Rationale: The correct answer is C. Shortness of breath and diaphoresis are concerning symptoms in a patient with chest pain as they may indicate a serious cardiac event like a heart attack. Shortness of breath suggests possible heart or lung involvement, while diaphoresis (excessive sweating) can be a sign of significant stress on the body. These symptoms warrant immediate medical attention to rule out life-threatening conditions. Choice A, a burning sensation after eating, is more suggestive of acid reflux or indigestion and is not typically associated with acute cardiac issues. Choice B, pain that improves with rest, is more indicative of musculoskeletal or non-cardiac causes of chest pain. Choice D, pain that worsens with palpation, is more likely related to musculoskeletal or chest wall issues rather than a cardiac emergency.