Final answer:
The patency of fallopian tubes during an infertility workup is primarily checked by Hysterosalpingography (HSG), an X-ray procedure where a dye outlines the tubes for any blockages or problems.
Step-by-step explanation:
The test currently used to check the patency of a client's fallopian tubes during an infertility workup is Hysterosalpingography (HSG). This is an X-ray procedure where a contrast dye is injected through the cervix into the uterus and fallopian tubes. The dye outlines the interior of the fallopian tubes on the X-ray images, allowing the healthcare provider to see if there are any blockages or structural problems.
Other methods to assess fallopian tube patency include laparoscopy, which involves inserting a camera into the abdomen through a small incision to visually inspect the reproductive organs, and sonohysterography, an ultrasound technique used to visualize the interior of the uterus and fallopian tubes, but HSG is often the first choice due to its non-invasive nature and ability to provide detailed images of the fallopian tubes.