The information here is too limited to really comment on. For example “water on the kidney" is jargon! The kidney is retroperitoneal (in the back outside of the abdominal cavity and will not have “water" on it unless there is a fluid cyst. Does the statement mean the patient had fluid in the abdominal cavity above the kidneys (ascites), or something else? We do not know what stage of pregnancy the patient is in, but any rise from usual blood pressure norms of a ~15 mm Hg diastolic requires closer scrutiny by the patient's caregivers. One suspects the patient will learn more the next day at which time other tests will be performed.
Finally, patients with kidney disease are more apt to develop preeclampsia that those without but still the greater majority do not. There is also no evidence that superimposed preeclampsia will add to kidney damage unless high blood pressures are not treated.
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