Pregnancy Tests Overview

What is the purpose of a medical diagnosis of pregnancy?

Pregnancy tests can only be performed by medical professionals.

What hormone do pregnancy tests detect to confirm pregnancy?

A urine test for pregnancy should be done _____ days after the missed menstrual period.

What are the names of two immunologic pregnancy tests mentioned?

When can hCG be detected in maternal blood using sensitive assays?

Ultrasound imaging involves using low frequency sound waves.

If menstruation occurs within _____ days after taking a contraceptive pill, the woman is not pregnant.

Match the following procedures with their descriptions:

Pregnancy Tests

Pregnancy tests rely on detecting the hormone human chorionic gonadotropin (hCG) in urine or serum.
hCG is the first placental hormone produced, detectable shortly after implantation.

Urine Tests

Urine tests should be done 10-14 days after a missed menstrual period for accurate results.
This timing ensures sufficient hCG levels and prevents false negatives.
Gravindex and Pregnosticon are immunologic tests with approximately 95% accuracy.

Blood Tests

Blood tests can detect hCG as early as 7 days after conception and are highly accurate (close to 100%).

Progesterone Withdrawal Test

This test involves taking a contraceptive pill daily or three times a day.
If menstruation occurs within 10-15 days, the woman is not pregnant.
If no bleeding occurs, the woman is likely pregnant.

Ultrasound Imaging

Ultrasound uses high-frequency sound waves to create images of the inside of the body.
It helps visualize the developing fetus and provides information about its growth and development.
Ultrasound is used to confirm pregnancy as early as 6 weeks, assess fetal structures and gender, and identify complications.

Specimen Collection for Urine Tests

First voided urine should be collected in a clean, dry bottle.
Avoid fluids from 8 pm the night before to concentrate the urine.
Refrain from taking drugs 24 hours before the test.
Label the specimen with the woman's name, date, and time of voiding.
Refrigerate urine if it cannot be delivered to the lab within an hour to preserve hCG.

This quiz covers various methods of pregnancy testing, including urine and blood tests. It explains the significance of hCG, the accuracy of different tests, and the use of ultrasound imaging. Test your knowledge on how these methods are applied and their effectiveness.