It doesn't specifically have to do with a drug dose. The word "stat" in medicine means "immediately, right now".
STAT dose is a "give it right away or immediately" dose while prn means "as needed" dose.
A bolus dose and stat dose are NOT necessarily the same thing. A bolus dose is typically pre-packaged nowadays and is a pre-measured liquid dose intended to give at one time via IV. Different drugs that are used as bolus doses have different administration rates as well; for example, one type of drug may be fine to push completely but other drugs must be delivered in part, with time separating each push of the syringe. A stat dose can be delivered orally, rectally, IM, SubQ, or by IV. Technically, you could receive a physician's order to give a "Stat dose of aspirin". Stat does not necessarily mean an emergency or life-threatening situation, though most stat orders come during emergency or critical care situations. Stat simply means "do this now; immediately." You could see orders for: stat bloodwork stat urinalysis stat EKG stat administration of an injectable stat administration of an IV bolus stat administration of a piggy-back IV etc.
"As Directed"
Every morning
every 4 weeks
STAT dose is a "give it right away or immediately" dose while prn means "as needed" dose.
The medication is given immediately as a single dose. Stat means immediately, so a stat dose would mean the medication that would be given as fast as it could be dispensed to the patient.
This means that you are to start the medication right away.
A bolus dose and stat dose are NOT necessarily the same thing. A bolus dose is typically pre-packaged nowadays and is a pre-measured liquid dose intended to give at one time via IV. Different drugs that are used as bolus doses have different administration rates as well; for example, one type of drug may be fine to push completely but other drugs must be delivered in part, with time separating each push of the syringe. A stat dose can be delivered orally, rectally, IM, SubQ, or by IV. Technically, you could receive a physician's order to give a "Stat dose of aspirin". Stat does not necessarily mean an emergency or life-threatening situation, though most stat orders come during emergency or critical care situations. Stat simply means "do this now; immediately." You could see orders for: stat bloodwork stat urinalysis stat EKG stat administration of an injectable stat administration of an IV bolus stat administration of a piggy-back IV etc.
"As Directed"
A stat dose is one to be given immediately. In contrast, typical doses are given on schedule.
Every morning
twice a day
Stat means right away, so the dose of medicine has to be given now. A regular dose can wait until the time on the prescription.
every 4 weeks
three times a day
Route - take in the morning.