The copper used in Copper T has the following action?

Appeared in: Tripura CHO - 2021

Explanation

The primary contraceptive action of the copper in a Copper T IUD is spermicidal.
The device releases copper ions into the uterus, which creates an intense local inflammatory response.
This inflammatory environment is toxic to sperm, impairing their motility, capacitation (ability to fertilize an egg), and survival.
By incapacitating sperm, the Copper T primarily works by preventing fertilization from occurring.

Option A: This is a secondary, not primary, action. The inflammatory changes in the endometrium do make it difficult for a blastocyst (fertilized egg) to implant, but the main effect of the copper IUD is to prevent fertilization from happening in the first place.
Option B: Bacteriostatic means inhibiting the growth of bacteria. While copper has some antimicrobial properties, this is not its mechanism of action for contraception.
Option C: Bacteriocidal means killing bacteria. Similar to bacteriostatic, this is not the contraceptive purpose of the copper in an IUD.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Mechanism of action of Copper T IUD as background academic context rather than a clinical decision trigger.
The Copper T IUD is one of the most effective forms of reversible contraception, with a success rate of over 99%.
It is also a highly effective method of emergency contraception if inserted within 5 days of unprotected intercourse.
Nurses must counsel patients that the Copper T can increase menstrual bleeding and cramping, which is a common reason for discontinuation. It does not protect against sexually transmitted infections (STIs).

How to Approach the Question

First, identify the core subject of the question: the action of 'copper' in a 'Copper T' IUD.
This is a factual recall question requiring knowledge of contraceptive methods.
Evaluate each option's definition in the context of contraception.
Spermicidal means killing or incapacitating sperm. Blastocidal means destroying a blastocyst (fertilized egg). Bacteriostatic/Bacteriocidal relate to bacteria.
Recall or deduce the primary mechanism of the Copper T. It works before fertilization by affecting sperm.
Therefore, 'Spermicidal' is the most accurate description of its primary action.

Concept Tested & Keywords

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E6 Parks TextBook of Preventive & Social Medicine part 1 — Subpart C (pp 404-604 of 604) p. 190-192

E6 Gynecology Williams p. 116-144

Practise the full Tripura CHO - 2021

Attempt every question from this paper in a timed mock, then review the full solution for each one.