Morphine

Question 1

Morphine
Type

Answer 1

Narcotic analgesic

Question 2

Morphine
Presentation

Answer 2

10mg in 1ml glass ampoule

Question 3

Morphine
Actions

Answer 3

1. Decrease pain perception and anxiety
2. Vasodilation
   Onset IV =2-5mins; IM =5+ mins
   Durations IV = 1-2hrs; IM = 2-3hrs

Question 4

Morphine
Use

Answer 4

To relieve moderate to severe pain

Question 5

Morphine
Adverse Effects

Answer 5

HBRAND
1. Hypotension
2. Bradycardia
3. Respiratory depression
4. Altered level of consciousness
5. Nausea and vomiting
6. Dependence

Question 6

Morphine
Contraindications

Answer 6

2 lungs 1 heart
1. Respiratory depression
2. BP <70mmHg systolic
3. Acute asthma attacks

Question 7

Morphine
Precautions

Answer 7

3 ages, 3 H’s, 3 acronyms
1. Children under 1 years
2. Elderly patients (may be sensitive)
3. Pain management during labour
4. Hypovolaemic patients (hypovolaemia should be corrected before morphine administration)
5.Patients with a SBP 70-90mmHg
6. known hypersensitivity
7. Patients with CAL
8. Depressed LOC
9. Previous opiates

Question 8

Morphine
Dose IV

Answer 8

Adult and Paed
Up to 0.05mg/kg IV, over 2 mins. may be repeated at 5 minute intervals, until pain is managed. AP max of 20mg.
Use with caution under 1 year of age.

Question 9

Morphine
Dose SBP 70-90mmHg

Answer 9

Adult only
IV use only
hypovolaemic patients must be receiving fluid
Up to half of a calculated 0.05mg/kg dose, given slowly.
May be repeated as required, with great care and with an appropriate time interval between doses, titrated to response.
No further doses to be given if SBP drops 10mmHg or more with the half dose, even if it remains above 70mmHg.

Question 10

Morphine
Dose IM

Answer 10

Adult and Paed
Pain relief only
Not for chest pain if cardiac ischaemia suspected
no IV available
no hypotension
patient contact estimated >20mins
0/1mg/kg. repeat once, after 30-45minutes, if required.
AP no to exceed 20mg.