Chemical Pathology Day 4

Question 1

What are tumor markers

Answer 1

Tumor markers are metabolic products that are used to detect the presence and absence of tumors

Question 2

What is the significance of a beta HCG test

Answer 2

Molar Pregnancy
Choriocarcinoma
Gestational trophoblastic disease

Question 3

What is the normal beta HCG range

Answer 3

0 - 5

Question 4

What is the significance of CA (cancer antigen) 125

Answer 4

Ovarian cancer

Question 5

What is the significance of CA 15-3

Answer 5

Breast cancer

Question 6

What is the significance of CA 19-9

Answer 6

Pancreatic cancer
HCC

Question 7

What is the significance for CEA

Answer 7

Colorectal cancer

Question 8

Tumor marker tests can be done anytime
True or false

Answer 8

True

Question 9

What is the significance of AFP

Answer 9

Hepatoma
Teratoma
Neural tube defects (NTDs) or spinal bifida

Question 10

What is the significance of PSA (Prostate Specific Antigen)

Answer 10

Prostate cancer

Question 11

What are some tests that require fasting

Answer 11

FBS
Calcium
Prolactin

Question 12

What tube is used to collect tumor markers

Answer 12

Gel separator tube

Question 13

Mention some emergency tests

Answer 13

Cardiac tests
RBS
Blood gases

Question 14

Where are the storage sites of whole blood and serum

Answer 14

Whole blood - normal fridge
Serum - freezer to avoid bacterial growth and other chemical reactions