HSSC Staff Nurse - 2015
Obstetrics & Gynaecology
Easy

While using a vaginal diaphragm for contraception, what precaution should be kept in mind?

Appeared in: HSSC Staff Nurse - 2015

Explanation

  • The correct procedure for using a vaginal diaphragm is to insert it before intercourse and keep it in place for at least 6 hours after the sexual act.
  • This waiting period is critical because the diaphragm works in conjunction with a spermicide.
  • The 6-hour duration allows the spermicide enough time to immobilize and kill any sperm present in the vagina, preventing them from reaching the cervix and causing pregnancy.
  • The diaphragm itself acts as a physical barrier, holding the spermicide against the cervix for maximum effectiveness.

Why Other Options Were Wrong

  • Option A: Inserting the diaphragm just before ejaculation is too late. It must be in place before intercourse begins to protect against sperm in pre-ejaculate fluid and to ensure the barrier is properly positioned.
  • Option B: Removing the diaphragm immediately after ejaculation is a critical error. Sperm can remain viable in the vagina for several hours, and removing the barrier prematurely would allow them to travel to the cervix.
  • Option C: This option correctly identifies the pre-intercourse insertion window but incorrectly states that it should be removed immediately. The post-intercourse waiting period is essential for contraceptive efficacy.

Related Visual

Visual explanation — Related Visual
Clinical Relevance
  • Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Correct use of a vaginal diaphragm for contraception as background academic context rather than a clinical decision trigger.
  • Patient education is a key nursing responsibility. The nurse must ensure the user understands how to insert, check placement, remove, and care for the diaphragm, as well as the critical timing rules.
  • A significant safety concern is the risk of Toxic Shock Syndrome (TSS). Nurses must instruct users not to leave the diaphragm in place for more than 24 hours.
  • Users should be advised to have the fit of their diaphragm checked after childbirth, significant weight change (gain or loss of more than 10 pounds), or pelvic surgery, as the size needed may change.
How to Approach the Question
  • First, identify the core of the question, which is about the correct procedure ('precaution') for using a specific contraceptive device (vaginal diaphragm).
  • Recall the mechanism of action for a diaphragm. It's a barrier method that is always used with a spermicide.
  • Understand that the spermicide is not instantaneous; it requires time to kill sperm.
  • Evaluate each option based on the timing of insertion and, most importantly, removal.
  • Eliminate options that suggest removing the device immediately after intercourse, as this would not allow the spermicide to work.
  • Select the option that specifies leaving the device in place for several hours (at least 6) after intercourse, which is the standard, evidence-based guideline for this method.
Concept Tested & Keywords
  • Concept Tested: Correct use of a vaginal diaphragm for contraception.
  • Stem keywords: vaginal diaphragm, contraception, precaution
  • Lead-in keywords: what precaution

Question ID

QC1eoeBCdAjnRILQsKeYeC

Reference Book

E6 Obstetrics Williams p. 83-95

E6 Parks TextBook of Preventive & Social Medicine part 1 — Subpart C (pp 404-604 of 604) p. 188-190

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