Answer to Question 1
2, 3, 4
Responsibilities of the scrub nurse during a surgical procedure include maintaining the sterile field, passing instruments and supplies to the surgeon, and preparing medication. Donning surgical attire and organizing the sterile field are responsibilities done before the surgery begins. Removing used instruments are done after the surgery has concluded.
Answer to Question 2
4
A heart rate can be determined by multiplying the QRS complexes in a 6-second strip by 10. The heart rate is 90. This method of calculating the heart rate is the most common method used because it is quick and can be used when the heart rate is irregular.