The adverse effect of combined OCP’s among the following is :
**Core Concept**
The question is testing the knowledge of the adverse effects of combined oral contraceptive pills (OCPs). Combined OCPs contain an estrogen and a progestin that work together to prevent ovulation and pregnancy. However, their use can lead to various side effects, some of which are serious.
**Why the Correct Answer is Right**
The correct answer is related to the increased risk of venous thromboembolism (VTE) associated with combined OCPs. The estrogen component can cause an increase in the levels of clotting factors, such as factor II, VII, IX, and X, which can lead to an increased risk of deep vein thrombosis (DVT) and pulmonary embolism (PE). This is a well-documented adverse effect of combined OCPs, and patients are advised to be aware of the signs and symptoms of VTE.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because while combined OCPs can cause nausea and vomiting, these are not the most significant or well-documented adverse effects.
**Option B:** This option is incorrect because while combined OCPs can cause breast tenderness, this is not the most significant or well-documented adverse effect.
**Option C:** This option is incorrect because while combined OCPs can cause mood changes, these are not the most significant or well-documented adverse effect.
**Clinical Pearl / High-Yield Fact**
It is essential for patients taking combined OCPs to be aware of the signs and symptoms of VTE, including swelling in the legs, shortness of breath, and chest pain.
**Correct Answer:** D.