A 26-week pregnant client has a one-hour 50g glucola test. Her results are 150 mg/dl. She should be counseled to:

A. Open up the IV: Increasing the infusion of non-medicated fluids may improve maternal hydration and placental perfusion. However, this action does not stop the excessive uterine stimulation causing the hypertonicity. The primary pharmacological trigger must be addressed first to ensure safety.

B. Start oxygen per face mask: Administering oxygen helps mitigate fetal hypoxia resulting from reduced placental blood flow during prolonged contractions. This is a supportive measure rather than a corrective one. The source of the uterine tachysystole must be eliminated to restore normal perfusion.

C. Stop the oxytocin infusion: Hypertonic contractions significantly reduce oxygen exchange in the intervillous space. Discontinuing the exogenous oxytocin immediately decreases uterine muscle tone and prevents potential uterine rupture or fetal asphyxia. This is the most critical intervention to stop the adverse effect.

D. Turn the client on her left side: Lateral positioning helps maximize blood flow to the uterus by relieving pressure on the vena cava. While beneficial for fetal resuscitation, it cannot counteract the mechanical pressure of a hypertonic uterus. It is performed after stopping the medication infusion.

A. increase her protein: While a balanced diet is essential for gestational health, increasing protein intake does not address the underlying carbohydrate intolerance suggested by an elevated screening result. This intervention fails to provide the diagnostic clarity required for a definitive metabolic assessment. It is a nutritional adjustment rather than a clinical diagnostic step.

B. schedule a repeat one-hour test: A single elevated 1 hour 50g glucose challenge test provides sufficient screening evidence to warrant more definitive diagnostic testing. Repeating the same screening procedure is not standard protocol and delays the identification of gestational diabetes mellitus. The clinical pathway mandates a more rigorous, multi-hour diagnostic evaluation.

C. return for a fasting three-hour glucose tolerance test: A result of 150 mg/dl exceeds the standard 130 to 140 mg/dl threshold, necessitating a 100g 3 hour diagnostic test. This gold-standard procedure involves fasting and multiple blood draws to confirm or rule out gestational diabetes. It evaluates the body's ability to maintain glucose homeostasis over an extended period.

D. restrict her carbohydrate intake: Implementing dietary restrictions before a formal diagnosis is premature and may mask the results of subsequent diagnostic testing. Patients must maintain a normal carbohydrate load prior to a 3 hour glucose tolerance test to ensure accurate metabolic data. Therapeutic interventions are only initiated once a pathological state is confirmed.