A pap-smear analysis tool (PAT), or just pap test, is a procedure to detect cervical cancer in women. It consists of collecting cells form the cervical, and seeking for cancerigenous cells. Basically, through this test, can be screened the cervix. This procedure is recommend to be done every three years if the person age is between 21 and 65.
In addition, the cells collected help to detect cancer by monitoring cells in case of changes, because if cervix cells present unusual changes, there's a change of cancer.
The doctrine of double effect refers to the explanation of the ethical doctrine which will have two consequences, the morality of the consequences will be decided by the intention of the consequences.
If the double effect doctrine results in bad results then the bad results will be accepted morally only if the bad results are the side effects of the doctrine.
In the given question, providing the chemotherapy can kill the fetus then doctors can justify the doctrine using the double effect as the killing of the fetus is a side effect.
