For resps: breath sounds--clarity, depth, ease of breathing, sounds heard in the lungs and/or by the person breathing (wheezing, etc.). You also may want to document (I do) color of mucous membranes (they should be pink), O2 sat.
For hr: what rhythm? Sinus, sinus tach, vtach, bijim, etc., etc., but only if the pt. is on an ekg monitor. If listening with a stethoscope, is the rhythm regular or irregular, are there any accessory sounds/beats? Is the pulse bounding or thready?
What the nurse documents really depends on what types of monitors the pt. is hooked up to (if any), the pt's condition, the unit the pt. is on, and if there is any distress exhibited/anticipated/suspected.
Hope this has been useful.