Reasons for deciding not to have diagnostic tests

If both parents discover they are carriers, there is a 1 in 4 chance their baby will have the condition. They can choose whether to have a diagnostic test to check if the baby is affected. No-one has to have these tests. It has to be a personal decision. See ‘Deciding to have diagnostic tests‘ for the views of parents who decided they would like a test.

However, some parents decide they would rather not know whether the baby has the condition before birth, especially if they feel strongly they would never terminate a pregnancy. One mother whose first baby was born with sickle cell anaemia explained why she did not want tests in her next pregnancy. (In her third pregnancy, when she moved to the UK, she was told she should have amniocentesis because of her age. She was wrongly made to feel it was compulsory).

In her second pregnancy, she had no diagnostic tests, because she wouldn’t want to end the pregnancy. [La deuxi√®me fois, elle n’a pas eu des tests diagnostiques, parce qu’elle n’aurait pas voulu arr√™ter la grossesse].

Age at interview 40

Gender Female

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Religious beliefs influenced many people in deciding not to have any further tests.

She felt strongly as a Christian that she did not want any diagnostic tests, and has faith her…

Gender Female

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A Muslim couple who already had a son with beta thalassaemia major were told their second baby could provide a donor match for their son to have a bone marrow transplant to cure him, but there was also a risk the second baby would have the condition. (See ‘Living with beta thalassaemia major and intermedia). They decided to have no screening for the new baby, and the mother said:

‘I didn’t get pregnant to cure my son, I left everything in the hands of Allah. Whatever Allah is happy with, I am happy with.’

However, some people with religious beliefs did not feel this prevented them from considering prenatal tests and even possibly termination.

A Muslim family described religion as part of their thinking, but they were also influenced by their lack of trust in medical diagnosis and treatment. The mother had tests in her first pregnancy but regretted this and had no testing in any other pregnancies. She felt termination would be a sin, and is glad to have her daughter who has beta thalassaemia major.

Although she had CVS in her first pregnancy she knew she would not terminate. In her other…

Age at interview 32

Gender Female

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She is glad their daughter who has beta thalassaemia major was born and that they did not agree…

Age at interview 32

Gender Female

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Her sister-in-law explained that their lack of trust in medical services had been influenced by the experience of other family members, including one who had initially been diagnosed with beta thalassaemia major but has since seemed healthy. (Beta thalassaemia major, a severe and life-threatening anaemia, is the most common form of the condition, but there are other forms including beta thalassaemia intermedia, which may be milder but which are not always straightforward to diagnose. People with a very mild form may not need regular blood transfusions. See ‘Living with beta thalassaemia major and intermedia’ for more about the nature of the conditions).

Attitudes to diagnostic tests in pregnancy do sometimes change in the light of experience. A number of parents who had tests in previous pregnancies but now had a child with the condition decided not to have tests in future pregnancies. Having experience of parenthood made some people feel differently.

They might consider testing again for other conditions such as Down’s syndrome but not for beta…

Gender Male

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The decisions you make in a first pregnancy may be different to those you make once you know what…

Gender Male

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A mother whose baby was diagnosed after birth with sickle cell disorder also decided not to have tests in her next pregnancy.

Now she has a son with SC disorder, she decided to have no tests in her current pregnancy because…

Age at interview 35

Gender Female

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However, another mother decided not to have tests in her third pregnancy and was shocked when the baby was born with sickle cell anaemia.

When she decided not to have CVS in her third pregnancy, she feels she did not know enough about…

Age at interview 37

Gender Female

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The question of how professionals inform and counsel people when they have to make decisions is discussed further in ‘Advising people about their options.’ See also ‘Deciding to have diagnostic tests’ and ‘Values and religious beliefs’.

Deciding to have diagnostic tests

If both parents discover they are carriers, there is a 1 in 4 chance their baby will have the condition. They can choose whether to...

Experience of having diagnostic tests

There are two types of diagnostic test, chorionic villus sampling (CVS) and amniocentesis. In these tests, a fine needle is inserted through the abdomen to...