A nurse is teaching a client about positive signs of pregnancy.
Which of the following findings should the nurse include?
A.
Fetal heart tones detected by ultrasound.
B.
Breast tenderness.
C.
Positive urine pregnancy test.
D.
Fatigue.
The Correct Answer and Explanation is :
The correct answer is A. Fetal heart tones detected by ultrasound.
Explanation:
In obstetrics, pregnancy signs are classified into three categories: presumptive, probable, and positive. Each category helps in diagnosing pregnancy but varies in certainty.
- Presumptive Signs: These are subjective symptoms that the client experiences, which might indicate pregnancy but could be caused by other conditions. Examples include:
- Breast tenderness (B): Often reported by clients due to hormonal changes, but it is not exclusive to pregnancy.
- Fatigue (D): While common in pregnancy, it can also result from numerous other factors like stress or illness.
- Probable Signs: These are objective signs that can be observed by the healthcare provider but are not definitive. Examples include:
- Positive urine pregnancy test (C): This test detects the presence of human chorionic gonadotropin (hCG) hormone. While a positive result suggests pregnancy, false positives can occur due to various factors.
- Positive Signs: These are definitive and confirm the presence of a fetus. They include:
- Fetal heart tones detected by ultrasound (A): This is a clear and unmistakable sign of pregnancy. Ultrasound can detect fetal heart tones typically around 6 to 8 weeks of gestation, making it a conclusive indicator that a fetus is present.
Positive signs are crucial for diagnosing pregnancy with certainty. The detection of fetal heart tones by ultrasound is the most definitive sign among the options provided because it directly indicates the presence of a viable fetus. Unlike presumptive or probable signs, it cannot be confused with other conditions or false positives.
In summary, while breast tenderness, fatigue, and a positive urine pregnancy test are important and supportive of the pregnancy diagnosis, they do not definitively confirm the presence of a fetus. Only fetal heart tones detected by ultrasound provide a clear, irrefutable sign of pregnancy.