Final answer:
The nurse should immediately check for signs of deep vein thrombosis (DVT) when a bedrest client complains of calf pain and burning, as these symptoms are indicative of a possible DVT, a medical emergency.
Step-by-step explanation:
When a client on bedrest complains of pain and burning in the right calf area, the nurse's next action should be C) Check for signs of deep vein thrombosis (DVT). This is crucial because symptoms like pain and burning accompanied by possible redness, swelling, and warmth can be indicative of a DVT, which is a serious condition requiring immediate medical attention. The steps to check for signs of DVT include evaluating the area for swelling, warmth, redness, and pain. Calibrated measurement of both calves may be taken for comparison. If DVT is suspected, the healthcare provider will need to be notified and diagnostic tests such as an ultrasound may be ordered. Other actions, such as applying ice packs, elevating the leg, or assessing the range of motion, may be appropriate after urgent concerns have been ruled out or as adjunct treatments based on the healthcare provider's instructions.