Abbreviation- “take medication every 8 hrs “
q8h
Prn
As needed
Ac
Before meals
Pc
After meals
Bid
Two times daily
Tid
Three times daily
Qid
Four times daily
qh
Every hour
q4h
Every 4 hours
q8h
Every 8 hrs
Q12
Every 12 hrs
qd
Every day
Prn
As needed
Stat
Immediately
Po
By mouth
Pr
Rectally
Pv
Vaginally
Hemoptysis
Coughing up of blood from the respiratory tract
Hematemesis
Vomiting blood
Hematuria
Urinating blood
Pyrexia
Refers to a fever or an elevated body temperature above 100.4 F
Hypothermia
An abnormally low body temperature below 95F 
Tachypnea
Refers to abnormally, rapid breathing rate more than 21 breaths per minute 
Bradycardia
Abnormally slow heart rate lower than 60 bpm