A nurse is reinforcing teaching about laboratory testing with a client who is at 6 weeks of gestation. Which of the following statements should the nurse include?

"You will have a screening for gestational diabetes at 12 weeks of gestation."

"You will have a group B strep culture at 36 weeks of gestation."

"You will have to produce a clean catch urine specimen every 2 months."

"You will have a maternal serum alpha-fetoprotein screening at 6 weeks of gestation."