Harris J P, Chester A C, Schreiner G E
Am Fam Physician. 1978 Oct;18(4):97-102.
Many clinical parameters and biochemical values normally change as a result of the profound effect of pregnancy on the kidney. These changes include hydronephrosis, decreased BUN and uric acid, proteinuria and glycosuria (70 percent one time), frequency, nocturia, edema (80 percent) and reductions in blood pressure. "Normal is abnormal." A BUN of 20 mg. percent is the equivalent of 40 mg. percent in a nonpregnant woman, and a blood pressure of 120/80 in the 24th week of preganancy may be hypertensive.
由于妊娠对肾脏的深远影响，许多临床参数和生化值通常会发生变化。这些变化包括肾积水、血尿素氮和尿酸降低、蛋白尿和糖尿（70%会出现一次）、尿频、夜尿、水肿（80%）以及血压降低。“正常即异常”。血尿素氮20mg%相当于非妊娠女性的40mg%，妊娠第24周时血压120/80可能为高血压。
