Patent ductus arteriosus occurs when the normal fetal circulation conduit between the pulmonary artery and the aorta fails to close and results in increased pulmonary blood flow. The clinical manifestations of patent ductus arteriosus include; Murmur; wide and bounding pulse pressure, Asymptomatic Heart failure.
The correct answer is A, a good hypothesis does not have to be complex
Below are the choices:
a. Platelets do not stick to intact endothelial cells.
<span>b. Platelets adhere to exposed collagen fibers. </span>
<span>c. Platelets release chemicals that attract and bind other platelets. </span>
<span>d. Platelets release the only chemical factors that can initiate coagulation.
</span>
the answer is <span>d. Platelets release the only chemical factors that can initiate coagulation.</span>
Explanation:
I think it's caused because of earthquake
