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Which is not a requirement for effective perfusion?

A.

Absence of chronic disease

B.

Adequate blood volume

C.

An open airway

D.

Functional systemic circulation

Answer and Explanation

The Correct Answer is A

A. The absence of chronic disease is not a strict requirement for effective perfusion. While chronic diseases can impact perfusion, such as through the effects of diabetes or hypertension on the cardiovascular system, effective perfusion can still occur in individuals with chronic conditions if other factors are managed appropriately.  

B. Adequate blood volume is essential for effective perfusion because without enough blood, oxygen and nutrients cannot be delivered to tissues.  

C. An open airway is crucial for effective perfusion because it allows for proper oxygenation, which is necessary for the delivery of oxygen to tissues via the bloodstream.  

D. Functional systemic circulation is required for effective perfusion, as it ensures that blood can flow throughout the body to deliver oxygen and nutrients to tissues and remove waste products.


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Related Questions

Correct Answer is B

Explanation

A. Obesity is a common symptom of Cushing syndrome but is not the primary diagnostic criterion. Other tests are needed to confirm the diagnosis.

B. A 24-hour urine collection for cortisol is one of the most common and reliable methods for diagnosing Cushing syndrome. Elevated cortisol levels in the urine are indicative of the syndrome.

C. Chronic renal failure is not related to the diagnosis of Cushing syndrome. While Cushing syndrome may affect renal function, it is not the primary diagnostic tool.

D. Alcoholism can cause symptoms similar to those of Cushing syndrome, but it is not used as a diagnostic criterion. The diagnosis of Cushing syndrome requires specific tests, such as urine cortisol measurement.

Correct Answer is A

Explanation

A. Dyspnea is the medical term for shortness of breath or difficulty breathing. It is a subjective sensation of uncomfortable breathing and is the most appropriate term for this client's description.

B. Aspiration refers to the inhalation of food, liquid, or other foreign substances into the airways, which can lead to choking or pneumonia. This does not describe the sensation of shortness of breath.

C. Hemoptysis refers to coughing up blood, which is unrelated to the sensation of shortness of breath described in the question.

D. Orthopnea is shortness of breath that occurs when lying flat, often associated with heart failure. The description in the question does not specifically mention difficulty breathing while lying down.

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