A nurse is caring for a client who is at 35 weeks of gestation and is receiving magnesium sulfate for treatment of preeclampsia.
Which of the following findings indicates that the medication is having the desired effect?

Choice A rationale

Bladder distention upon palpation indicates urinary retention, not effective voiding. When the bladder remains distended, it signifies incomplete emptying, which can lead to urinary stasis and increased risk of urinary tract infections. Effective voiding requires coordinated detrusor muscle contraction and urethral sphincter relaxation, which is absent with distention.

Choice B rationale

A uterine fundus 2 cm above the umbilicus, especially in the postpartum period, suggests uterine atony and possible bladder distention. A full bladder can displace the uterus upward and to the side, preventing effective uterine contraction and involution, which is crucial for preventing postpartum hemorrhage. Normal fundal height should decrease daily.

Choice C rationale

Not feeling the urge to urinate could indicate nerve damage, overdistention with sensory nerve suppression, or a very low urine output. Normal bladder sensation is crucial for effective voiding. The absence of the urge may lead to prolonged bladder distention, increasing the risk of infection and bladder dysfunction, which hinders efficient emptying.

Choice D rationale

Urinating 30 mL/hr, while seemingly low, is a continuous output and suggests the client is able to empty their bladder, albeit slowly. Postpartum diuresis typically begins within 12 hours, with urine output of 100 to 250 mL/hr common. However, any consistent output, rather than retention, indicates some voiding effectiveness.

Choice A rationale

A hematocrit of 37% falls within the normal physiological range for a pregnant individual, which typically expands due to increased plasma volume. This hemodilution is a normal adaptive response to pregnancy, ensuring adequate perfusion to the placenta and fetal unit. This finding does not warrant reporting as it reflects a healthy maternal circulatory adjustment.

Choice B rationale

A creatinine level of 0.9 mg/dL is within the normal reference range for renal function in pregnant individuals. Glomerular filtration rate (GFR) increases during pregnancy, leading to a slight decrease in serum creatinine. This value indicates appropriate renal clearance and is not a cause for concern.

Choice C rationale

A WBC count of 11,000/mm³ is generally considered within the physiological elevation often seen during pregnancy, particularly in the second and third trimesters. This mild leukocytosis is an immunological adaptation, supporting the maternal immune response without indicating an infectious process or pathology that requires immediate reporting.

Choice D rationale

A fasting blood glucose of 180 mg/dL is significantly elevated above the normal range (74 to 106 mg/dL) and indicates hyperglycemia. This finding is highly suggestive of gestational diabetes mellitus, which can lead to adverse maternal and fetal outcomes if not managed. Therefore, it requires immediate reporting to the provider for further evaluation and intervention.