As a result of blockage in the pulmonary artery, blood would first back up into the:
a. aorta.
b. left ventricle.
c. pulmonary veins.
d. right ventricle.
ANS: D
Blockage in the pulmonary artery would cause blood to back up into the right ventricle, not the aorta since these two vessels do not communicate. The pulmonary artery and left ventricle do not communicate. Blockage in the pulmonary artery would not cause blood to back up into the pul-monary vein since the pulmonary vein takes blood to the left atrium.
You might also like to view...
To catch all errors, a medical assistant should read a letter ________
Fill in the blank(s) with correct word
A 39-year-old man has been stabbed once in the anterior chest. When notifying the patrol aid room by radio, you inform them that the patient has suffered what possible type of injury?
a. Flail chest b. Evisceration c. A lacerated heart d. An open chest injury
A myeloperoxidase stain is performed on peripheral blood cells of a patient with acute leukemia and 85% blasts; the patient has an occasional mature neutrophil
When the stained slide is evaluated, the blasts are all negative but the mature neutrophils are strongly positive. What is the significance of this finding? a. The stain worked (internal positive control). b. Nothing can be determined until a positive control is also examined. c. Nothing can be determined because mature neutrophils are always positive. d. Nothing can be determined because only examination of the blasts is useful.
Infections of the ________ in children and young adults can affect their height
A) periosteum B) cartilage C) bone marrow D) growth plate