Clor 1

Question 1

IRON STUDIES

Answer 1

• Serum iron
  
  • low levels = iron deficiency anemia, chronic GI bleed, eavy menses
  • High levels = hemochromatosis, hemosiderosis
• Total iron binding capacity (transferrin level)
  
  • low levels = cirrhosis, SCD, pernicious anemia
  • High levels = iron deficiency anemia, PRC

Question 2

PT and PTT

Answer 2

• PT = prothrombin time
  
  • use to check the eeffects of warfarin or check for liver disease
• PTT = partial thrombopalstin time
  
  • checks effects of heparin
• PT and PTT = used to preop evaluation or to diagnose bleeding problems

Question 3

PSA

Answer 3

• Screening test for prostate cancer in men
• Increases normally as a man’s prostate enlarges with age
• may increase in prostatits or prostate cancer
• an injury, a digital rectal exam, or sexual activity (ejaculation) may also breifly raise PSA levels
  
  • does not raise with exercise