Which of these situations would require a signed consent by the patient? A. Peter's doctor has asked him to get his blood sugar checked. The phlebotomist needs to draw his blood.

B. Helen is feeling nervous and sweating profusely. The doctor needs to check her blood pressure.

C. Paula has hurt her ankle. The radiographer needs to take an X-ray.

D. Pedro has injured his hand and is bleeding. The doctor needs to dress the wound.

E. Silvia has injured her shoulder while skating. She has to undergo surgery.