A nurse is assessing an obese client in the clinic for follow-up after an episode of deep vein thrombosis. The client has lost 20 lb (9.09 Kg) since the last visit. What action by the nurse is best?
1) Ask if the weight loss was intended.
2) Encourage a high-protein, high-fiber diet.
3) Measure for new compression stockings.
4) Review a 3-day food recall diary.