When the nurse is caring for a patient whose HIV status in unknown, which of these patient exposures is most likely to

Question 

Question 1

When the nurse is caring for a patient whose HIV status in unknown, which of these patient exposures is most likely to require postexposure prophylaxis?

Needle stick with a needle and syringe used to draw blood
Splash into the eyes when emptying a bedpan containing stool
Contamination of open skin lesions with patient vaginal secretions
Needle stick injury with a suture needle during a surgical procedure

Question 2

Which information will the nurse include when teaching range-of-motion exercises to a patient with an exacerbation of rheumatoid arthritis?