IUD Cu 7380A life span is :
**Core Concept**
The intrauterine device (IUD) Cu 7380A is a type of non-hormonal, copper-containing IUD used for long-term contraception. It works by releasing ions that damage sperm and prevent fertilization. The lifespan of an IUD is a critical factor in its effectiveness and duration of use.
**Why the Correct Answer is Right**
The Cu 7380A IUD contains a copper core that is wrapped in a silver wire. When the IUD is inserted into the uterus, the copper core is exposed to the uterine environment, where it releases ions that are toxic to sperm. This mechanism is based on the process of ionization, where the copper core reacts with the uterine fluid to release copper ions. The lifespan of the Cu 7380A IUD is determined by the rate of copper ion release and the degradation of the copper core over time.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because it does not provide any specific information about the lifespan of the Cu 7380A IUD. Without knowing the correct lifespan, it is impossible to determine the correct answer.
**Option B:** This option is incorrect because it is too vague and does not provide any specific information about the lifespan of the Cu 7380A IUD. While copper IUDs are known to have a long lifespan, this option does not provide any concrete data.
**Option D:** This option is incorrect because it is too short and does not accurately reflect the lifespan of the Cu 7380A IUD.
**Clinical Pearl / High-Yield Fact**
It is essential to note that the lifespan of a copper IUD can vary depending on the specific type and brand, as well as the individual patient's factors such as age and uterine environment. Regular follow-up and replacement of the IUD as recommended by the manufacturer is crucial to maintain its effectiveness.
**Correct Answer:** C. 10 years.