Which is a statement true related to emergency contraceptive?

NORCET 5 Prelims - Sept 2023 (Shift-1)

Pharmacology

Easy

Appeared in: NORCET 5 Prelims - Sept 2023 (Shift-1)

Explanation

Levonorgestrel (LNG), a common progestin-only emergency contraceptive, is available in different dosage regimens.
One of the standard, widely available regimens consists of two 0.75 mg tablets.
In this two-dose regimen, the first 0.75 mg tablet is taken as soon as possible after unprotected intercourse, and the second is taken 12 hours later.
A single-dose 1.5 mg tablet is also a common alternative, but the existence of the 0.75 mg tablet makes this statement true.

Option A: Emergency contraception's effectiveness is tied to the time elapsed since unprotected intercourse, not the phase of the menstrual cycle. It should be taken as soon as possible, ideally within 72 hours.
Option B: Levonorgestrel-based emergency contraception is approved for over-the-counter (OTC) sale in many countries, meaning it can be purchased without a healthcare provider's prescription.
Option D: Emergency contraception is significantly less effective for pregnancy prevention than regular, ongoing contraceptive methods. It also has more side effects when used frequently and offers no protection against STIs.

Visual 1: Infographic: A timeline showing the window of efficacy for emergency contraception (up to 120 hours), highlighting that effectiveness decreases over time.
Visual 2: Chart: A comparison of different emergency contraceptive methods, including Levonorgestrel, Ulipristal Acetate, and the Copper IUD, showing their dosages, timing, and effectiveness.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Pharmacology and administration of emergency contraception as background academic context rather than a clinical decision trigger.
Nurses play a vital role in educating patients about the correct use of emergency contraception, emphasizing that it is not for regular use.
Counseling should include managing side effects, such as nausea, and advising the patient to seek medical advice if they vomit within two hours of taking the pill.
It is a crucial patient safety issue to explain that EC does not protect against sexually transmitted infections (STIs) and to discuss safer sex practices.

How to Approach the Question

First, identify the core subject of the question, which is 'emergency contraceptive'.
The question asks for a 'true statement', so you must evaluate each option for factual accuracy.
Recall key pharmacological details about emergency contraception: its active ingredient (commonly Levonorgestrel), dosage, timing of administration, prescription status, and its intended use.
Option A: Evaluate the timing. Is it related to the menstrual cycle or intercourse? Recall it's based on intercourse.
Option B: Evaluate its availability. Is it prescription-only or over-the-counter (OTC)? Recall it's widely available OTC.
Option C: Evaluate the dosage. Is 0.75 mg a known dose for LNG? Recall the two-dose regimen.

Concept Tested & Keywords

Concept Tested: Pharmacology and administration of emergency contraception.
Stem keywords: emergency contraceptive, statement true
Lead-in keywords: true
Clinical cues: The care setting changes urgency, monitoring level, and the expected nursing action.

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