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Vascular response includes

A.

Allowing the lining of the vessels to become impermeable

B.

Dilating blood vessels

C.

Limited perfusion to the site of injury

D.

Constrict blood vessels

Answer and Explanation

The Correct Answer is B

A. The vascular response initially increases permeability to allow essential cells and substances to reach the site of injury, rather than becoming impermeable.

B. Dilating blood vessels increases blood flow to the injured area, facilitating the delivery of immune cells and nutrients necessary for healing.

C. Limited perfusion contradicts the purpose of the vascular response, which is to enhance blood flow to the injury.

D. While blood vessels can constrict initially to minimize blood loss, the vascular response overall is characterized by dilation to promote healing.


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Related Questions

Correct Answer is B

Explanation

A. The prodrome phase occurs before the onset of jaundice and includes nonspecific symptoms like fatigue and malaise, which the patient has already progressed beyond.

B. The icterus phase is characterized by jaundice, dark urine, clay-colored stools, and liver enlargement, all of which are present in this patient's symptoms.

C. The recovery phase follows the icterus phase and involves the resolution of symptoms and jaundice.

D. The incubation phase occurs before symptoms appear, and the patient is already exhibiting clear clinical manifestations.

Correct Answer is A

Explanation

A. An epidemic refers to a sudden increase in the number of cases of a disease above what is normally expected in a specific area or population. The localized nature of the increase in ringworm infections supports this classification.

B. Endemic refers to a disease or condition regularly found among particular people or in a certain area; it does not account for the sudden spike in infections.

C. A pandemic involves widespread outbreaks affecting multiple countries or continents, which does not apply here.

D. Prevalence measures how widespread a disease is within a population, but it does not reflect sudden increases.

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