After cytologic examination a patient is diagnosed with a tumor that is staged as TIS, N1a, M0. What does this staging classification indicate to the nurse about the patient's tumor?
Select all that apply.
1. TIS means the tumor is in situ.
2. M0 means that it has metastasized.
3. M0 means that it has not metastasized.
4. N1a means one lymph node is involved.
5. N1a means that no lymph nodes are involved.
Correct Answer: 1, 3, 5
TIS means that the tumor is in situ. M0 means there is no evidence of distant metastasis. N1a means there is no metastasis to regional lymph nodes.
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