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Reproductive Health - Medical Termination of Pregnancy (MTP)

Grade 12CBSEBiology

Review the key concepts, formulae, and examples before starting your quiz.

🔑Concepts

Medical Termination of Pregnancy (MTP) is defined as the intentional or voluntary termination of pregnancy before full term, also commonly known as induced abortion.

Globally, nearly 4545 to 5050 million MTPs are performed in a year, which accounts for approximately 15th\frac{1}{5}^{th} of the total number of conceived pregnancies in a year.

The Government of India legalized MTP in 19711971 with strict conditions to prevent its misuse, specifically to curb illegal female foeticide following sex determination via amniocentesis.

According to the MTP (Amendment) Act, 20212021, a pregnancy may be terminated within the first 2020 weeks on the opinion of one registered medical practitioner. For pregnancies between 2020 and 2424 weeks, the opinion of two registered medical practitioners is required for specific categories of women.

MTPs are considered relatively safe during the first trimester, i.e., up to 1212 weeks of pregnancy. Second-trimester abortions are significantly more risky for the mother.

Common reasons for MTP include failure of contraceptives used during coitus, unwanted pregnancies resulting from rape, or cases where the continuation of the pregnancy could be harmful or even fatal to either the mother or the foetus.

📐Formulae

Safe Period for MTP12 weeks (1st Trimester)\text{Safe Period for MTP} \leq 12 \text{ weeks (1st Trimester)}

MTP Statistics15×Total Conceived Pregnancies per annum\text{MTP Statistics} \approx \frac{1}{5} \times \text{Total Conceived Pregnancies per annum}

Legal Limit (General)=20 to 24 weeks (with medical opinion)\text{Legal Limit (General)} = 20 \text{ to } 24 \text{ weeks (with medical opinion)}

💡Examples

Problem 1:

A pregnant woman discovers at 1818 weeks that the foetus has a severe abnormality that is incompatible with life. According to the MTP (Amendment) Act 20212021, what is the legal requirement for her to undergo a termination?

Solution:

The woman requires the opinion of only one registered medical practitioner to proceed with the MTP.

Explanation:

As per the 20212021 amendment, for pregnancies up to 2020 weeks, a single medical practitioner's opinion is sufficient. If the pregnancy was between 2020 and 2424 weeks, two opinions would have been mandatory.

Problem 2:

Why is the period after 1212 weeks of pregnancy considered more critical for MTP?

Solution:

After the first trimester (>12> 12 weeks), the foetus becomes more intimately associated with the maternal tissues (placental development is complete), making surgical intervention more complex.

Explanation:

In the second trimester, the risks of maternal haemorrhage and infection increase significantly, making the procedure much more dangerous than during the first 1212 weeks.

Medical Termination of Pregnancy (MTP) Revision - Class 12 Biology CBSE