Onset Times

Question 1

Adrenaline

Answer 1

IV effects:
Onset: 30 seconds
Peak: 3 – 5 minutes
Duration: 5 – 10 minutes
IM effects:
Onset: 30 – 90 seconds
Peak: 4 – 10 minutes
Duration: 5 – 10 minutes

Question 2

Aspirin

Answer 2

Duration: 8 - 10 days

Question 3

Dexamethasone

Answer 3

e
IV effects:
Onset: 30 - 60 minutes
Peak: 2 hours
Duration: 36 - 72 hours

Question 4

Dextrose 10%

Answer 4

IV effects:
Onset: 3 minutes
Peak: n/a
Duration: Depends on severity of hypoglycaemic episode

Question 5

Fentanyl

Answer 5

IV effects:
Onset: Immediate
Peak: < 5 minutes
Duration: 30 - 60 minutes
IN effects:
Peak: 2 minute

Question 6

Glucagon

Answer 6

IM effects:
Onset: 5 minutes
Peak: n/a
Duration: 25 minutes

Question 7

GTN

Answer 7

S/L effects:
Onset: 30 seconds – 2 minutes
Peak: 5 - 10 minutes
Duration: 15 - 30 minutes
Intravenous effects
Onset: 30 seconds – 1 minute
Peak: 3 - 5 minutes
Duration: 15 - 30 minutes
Transdermal effect
Onset: Up to 30 minutes
Peak: 2 hours

Question 8

Ipratroprim Brodmide

Answer 8

Onset: 3 - 5 minutes
Peak: 1.5 - 2 hours
Duration: 6 hours

Question 9

Ketamine

Answer 9

Onset of action:
IV 30 seconds (anaesthesia)
IM 3 – 4 minutes
IN 5 minutes
Peak:
IN 20 minutes
Duration of action:
IV 5 – 10 minutes (anaesthesia)
IM 12 – 25 minutes
IN 45 minutes

Question 10

Midazolam

Answer 10

IM effects:
Onset: 3 – 5 minutes
Peak: 15 minutes
Duration: 30 minutes
IV effects:
Onset: 1 – 3 minutes
Peak: 10 minutes
Duration: 20 minutes

Question 11

Morphine

Answer 11

IV effects:
Onset: 2 – 5 minutes
Peak: 10 minutes
Duration: 1 – 2 hours
IM effects:
Onset: 10 – 30 minutes
Peak: 30 – 60 minutes
Duration: 1 – 2 hours

Question 12

Naloxone

Answer 12

IV effects:
Onset: 1 – 3 minutes
Peak: n/a
Duration: 30 – 45 minutes
IM effects:
Onset: 1 – 3 minutes
Peak: n/a
Duration: 30 – 45 minutes

Question 13

Olanazpine

Answer 13

Onset of action: 15 mins4

Duration of action: 12 – 24 hours5

Question 14

Ondansetron

Answer 14

ODT
Onset: 2 minutes
Peak: 20 minutes
Duration: 120 minutes
IV
Onset: 5 minutes
Peak: 10 minutes
Duration: between 2.5 and 6.1 hours
IV doses should be delivered as a slow push (minimum 30 seconds).

Question 15

Oxytocin

Answer 15

Must be stored between 2 - 8ºC
IM effects:
Onset: 2 – 4 minutes
Peak: n/a
Duration: 30 – 60 minutes

Question 16

Paracetamol

Answer 16

Onset: 30 minutes
Peak: N/A
Duration: 4 hours

Question 17

Prochlorperazine

Answer 17

IM effects
Onset: 20 minutes
Peak: 40 minutes
Duration: 6 hours

Question 18

Salbutamol

Answer 18

:
Onset: 5 – 15 minutes
Peak: n/a
Duration: 15 – 50 minutes