Final answer:
The finding that would necessitate calling the primary care provider to assess the client is absence of fetal movements. At 20 weeks pregnant, the client should be feeling fetal movements regularly.
Step-by-step explanation:
The finding that would necessitate calling the primary care provider to assess the client is d. Absence of fetal movements. At 20 weeks pregnant, the client should be feeling fetal movements regularly. The absence of fetal movements could indicate a potential problem or complication, and it is important for the primary care provider to assess the client to ensure the well-being of both the client and the baby.