Registered Dietitian Nutritionist Registered Dietitian Problem 5

Question 1

A pregnant client in the second trimester asks about mercury exposure from fish. The RD should advise:

Accepted Answer

Consume up to 8–12 oz/week of low-mercury fish and limit high-mercury fish like swordfish

Answer

FDA and EPA guidelines recommend 8–12 oz/week of low-mercury fish during pregnancy to provide DHA while limiting methylmercury exposure from high-mercury species.

Question 2

Which of the following is a modifiable risk factor for type 2 diabetes that an RD can directly address through MNT?

Accepted Answer

Excess body weight and physical inactivity

Answer

Excess body weight and physical inactivity are the primary modifiable risk factors for type 2 diabetes addressable through medical nutrition therapy and lifestyle counseling.

Question 3

A patient with GERD asks about dietary strategies. Which recommendation is most evidence-based?

Accepted Answer

Eat smaller, more frequent meals and avoid lying down within 2–3 hours of eating

Answer

Smaller meals reduce gastric distension and acid production, while upright posture after eating prevents reflux of stomach contents into the esophagus.

Question 4

A client with celiac disease is confirmed adherent to a gluten-free diet but reports continued diarrhea and bloating. The RD should next assess for:

Accepted Answer

Lactose intolerance as a co-existing condition

Answer

Lactose intolerance frequently co-exists with celiac disease due to villous atrophy reducing lactase production, causing persistent GI symptoms even on a gluten-free diet.

Question 5

An RD is calculating nitrogen balance for an ICU patient receiving 100 g of protein per day. Urinary urea nitrogen (UUN) is 14 g/day. Assuming standard corrections, the nitrogen balance is approximately:

Accepted Answer

+2 g/day

Answer

Nitrogen balance = (protein intake ÷ 6.25) − (UUN + 4); (100/6.25) − (14 + 4) = 16 − 18 = −2 g/day, indicating negative nitrogen balance and need for increased protein.

Registered Dietitian Nutritionist Practice Test

Registered Dietitian Nutritionist Practice Test

Registered Dietitian Nutritionist Registered Dietitian Problem 5