CA 15-3 is a tumor marker to detect the presence of ________.

[Answer to ques. #1]  A
Explanation: A) Correct It detects the presence of antigens on the surface of breast cancer cells.
B) This test does not detect ovarian cancer.
C) This test does not detect pancreatic cancer.
D) This test does not detect colon cancer.

[Answer to ques. #2]  hepatocyte

[Answer to ques. #3]  FALSE
Explanation: Petechiae are pinpoint hemorrhages. A hematoma is an elevated collection of blood under the skin.

[Answer to ques. #4]  D
Explanation: A) Neurofibromatosis is not related to tic douloureux.
B) A neuroma is not related to tic douloureux.
C) Epilepsy is not related to tic douloureux.
D) Correct Trigeminal neuralgia is pain along the path of a nerve caused by an injury to the nerve.

[Answer to ques. #5]  C
Explanation: A) Morphology refers to the shape, not the number of sperm.
B) Morphology refers to the shape, not the forward movement (motility) of sperm.
C) Correct
D) Morphology refers to the shape, not the size of sperm.

[Answer to ques. #6]  C
Explanation: A) Palpation does not involve listening.
B) Exacerbation does not involve listening.
C) Correct
D) Inspection does not involve listening.

[Answer to ques. #7]  C
Explanation: A) The ossicular chain has three bones, only one of which is the hammer-shaped bone.
B) Incudal pertains to the incus or anvil-shaped bone, not the hammer-shaped bone.
C) Correct The combining form malle/o- means hammer-shaped bone; malleus.
D) Meatus is an opening, not a bone.

[Answer to ques. #8]  popliteal

[Answer to ques. #9]  TRUE

[Answer to ques. #10]  B
Explanation: A) This is done to diagnose diabetes mellitus, not diabetes insipidus.
B) Correct This is also known as the water deprivation test. It tests the patient's ability to concentrate urine.
C) These are done to assess the function of the anterior pituitary gland, not diagnose diabetes insipidus.
D) This is done to monitor diabetes mellitus, not diagnose diabetes insipidus.

[Answer to ques. #11]  defecation

[Answer to ques. #12]  B
Explanation: A) This biopsy does not use a biopsy needle.
B) Correct Stere/o- means three dimensions.
C) This biopsy does not use a biopsy needle.
D) This biopsy does not pinpoint the mass in three dimensions.

Great answers! <3