So your airline wants you to go-around if your collegue has just died or is unconscious?!
You are probably stable ( under 1000'), runway ahead, mere minutes from medical care, instead you would go around single pilot, get vectored, prepare another approach, talk to the cc etc...losing precious minutes and then to top it off having to land anyhow single pilot
In case of missed call at 80 kts, call 90 kts. If no answer, reject.
SOP in all airlines i know.