Third generation IUDs are?

VSSC Nursing Officer - 2021

Obstetrics & Gynaecology

Easy

Appeared in: VSSC Nursing Officer - 2021

Explanation

Third-generation IUDs are defined as devices that release a hormone to provide contraception.
These devices contain a reservoir of a progestin hormone, such as levonorgestrel (in Mirena) or progesterone (in Progestasert).
The hormone is released locally into the uterus, which thickens cervical mucus to block sperm and thins the uterine lining to prevent implantation.
This mechanism is distinct from the inert (1st gen) and copper-based (2nd gen) IUDs.

Option A: Copper-impregnated devices are classified as second-generation IUDs. Their primary mechanism is the spermicidal effect of copper ions.
Option C: Silver is not a primary contraceptive agent in IUDs. Some second-generation copper IUDs (like Cu-T 380 Ag) have a silver core within the copper wire to prevent fragmentation, but they are still classified as copper IUDs.
Option D: Nylon is a type of plastic (polymer) used to make the frame or tail of first-generation (inert) IUDs, such as the Lippes Loop.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Classification and types of Intrauterine Devices (IUDs) as background academic context rather than a clinical decision trigger.
Hormonal IUDs (3rd gen) offer non-contraceptive benefits, such as significantly reducing menstrual bleeding and pain. They are often used as a treatment for menorrhagia (heavy periods) and dysmenorrhea (painful periods).
Nurses must counsel patients on the different types of IUDs, including the difference between hormonal and non-hormonal options, to help them make an informed choice based on their health history and personal preferences.
What if? If a patient has very heavy and painful periods and desires long-term contraception, a hormonal IUD (3rd gen) would be a more suitable recommendation than a copper IUD (2nd gen), as copper IUDs can sometimes increase menstrual bleeding and cramping.

How to Approach the Question

Identify the core subject of the question, which is 'Third generation IUDs'.
This is a factual recall question that requires knowledge of contraceptive methods.
Recall the classification system for IUDs, which is based on their mechanism of action: inert (1st gen), copper (2nd gen), and hormonal (3rd gen).
Match the term 'Third generation' with its corresponding type, which is 'Hormonal'.
Evaluate the given options to find the one that matches 'Hormonal'.
Eliminate the other options by correctly identifying them with other generations (Copper = 2nd gen, Nylon = material for 1st gen).

Concept Tested & Keywords

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