What blood pressure reading is indicative of severe preeclampsia?

• A. 120/80
• B. 140/90
• C. 160/110
• D. 180/120

Answer: (C)

Severe preeclampsia is a condition characterized by high blood pressure and often occurs after the 20th week of pregnancy. A critical aspect of diagnosing severe preeclampsia involves recognizing specific thresholds for blood pressure readings. A reading of 160/110 mmHg or higher is classified as severe hypertension, which is indicative of severe preeclampsia.

The reason this reading is significant is that it reflects severe vascular resistance that can lead to various complications for both the mother and the fetus, including the risk of organ malfunction. Medical guidelines typically define severe hypertension as systolic blood pressure equal to or exceeding 160 mmHg or diastolic blood pressure equal to or exceeding 110 mmHg. Thus, a reading of 160/110 directly meets this criterion, leading to the diagnosis of severe preeclampsia.

In contrast, lower blood pressure readings, such as those found in the other options, do not meet the criteria for severe preeclampsia. For instance, a reading of 120/80 is considered normal, while 140/90, though elevated, does not reach the threshold for severe preeclampsia. Similarly, while a reading of 180/120 indicates severe hypertension, it