Computers can direct the power of therapeutic radiation precisely to a cancerous tumor

Which of the following is NOT one of the major symptoms of pelvic inflammatory disease (PID)?

a. Lower abdominal pain b. Abnormal vaginal discharge c. Pain in the upper abdomen d. Painful intercourse

Prior to administering nitroglycerin to a patient with chest pain, the patient denies the use of erectile dysfunction (ED) drugs when asked, even though he took an ED drug a few hours earlier. After being given the nitroglycerin, the patient experiences severe hypotension and almost dies. Which of the following could the paramedic use as a potential defense if the patient attempts to sue?

A) Patient incompetence B) Contributory negligence C) Plausible deniability D) Qualified immunity