Question

question 9
1 pts
microcytic refers to a red blood cell that is:
normal in color
pale in color
normal in size
small in size

question 10
1 pts
what are the pt and ptt tests used for?
to calculate the percentage of red blood cells in a blood sample
to monitor the progress of hiv infection
to diagnose pernicious anemia
to measure the time it takes the blood to clot

Explanation:

Question 9

The prefix "micro -" in medical terminology means small. When referring to red blood cells, "microcytic" specifically describes the size of the cell. Color - related terms would have different prefixes (e.g., "normochromic" for normal color, "hypochromic" for pale color). So, "microcytic" focuses on size.

PT (Prothrombin Time) and PTT (Partial Thromboplastin Time) are laboratory tests that assess the coagulation (clotting) ability of blood. Calculating red - blood - cell percentage is done by hematocrit. Monitoring HIV is through viral load, CD4 counts etc. Pernicious anemia diagnosis involves tests like B12 levels, intrinsic factor antibodies. PT and PTT directly measure clotting time.

Answer:

small in size

Question 10