OCCULT BLOOD AND PREGANANCY TESTING Flashcards
What is defined as presence of hidden or unseen blood in the stool?
Fecal occult blood
Fecal blood is a frequent and early symptom of what?
Colorectal cancer
Fecal occult blood tests can decrease the mortality from colon cancer by what percentage?
15-35%
When collecting a fecal sample, patients must be advised to follow what kind of diet and for how long?
meat free for 3 days
How many fecal specimens should be collected and over how many days?
3 specimens over 3 days
What would a positive reaction be with a fecal occult blood test?
blue color on the back of the slide
Urine or serum pregnancy testing is used to confirm pregnancy by the detection of what hormone?
Human Chorionic Gonadotropin (HCG)
What is a hormone produced by the placenta from the earliest stages of fetal development?
HCG
What is one of the essential hormones for maintaining pregnancy ?
HCG
HCG is also produced in appreciable amounts in what conditions?
- Trophoblastic tumors in men
- Beginning of menopause
- Cyst-like moles (hydatidiform)