If a female patient has a menstrual period that is one month overdue, what level of pregnancy diagnosis does this indicate?

When a female patient has a menstrual period that is one month overdue, this is classified as a presumptive indication of pregnancy. Presumptive signs are those symptoms that a woman may experience that are suggestive of pregnancy but are not definitive. They are based on the subjective experience of the patient and are not confirmed by any clinical tests. A missed period is often one of the first signs that a woman may consider when suspecting pregnancy, making it a classic example of a presumptive sign.

Other levels of pregnancy diagnosis include positive, probable, and possible. Positive signs refer to definitive evidence of pregnancy observed through clinical tests, such as a positive pregnancy test or the presence of fetal heart tones. Probable signs involve findings that strongly suggest pregnancy but require further validation; these could include things like a larger-than-expected uterus or certain physical changes noted in a clinical examination. Possible signs are less definitive and can come from external factors or other conditions that mimic pregnancy symptoms.

Thus, since a menstrual delay is an indication that is based on a woman's subjective experience and not on confirmatory tests, it fits squarely into the category of presumptive signs of pregnancy.