DTP's and CPG's Flashcards
(115 cards)
What are the indications for Aspirin?
- Suspected ACS
- Acute cardiogenic pulmonary oedema (cardiogenic APO)
What are the contraindications for Aspirin?
- Allergy / adverse drug reaction to aspirin or any NSAID
- Chest pain associated with psychostimulant overdose
- Bleeding or clotting disorders
- Current GI bleeding OR peptic ulcers
- less than 18 years
What are the precautions for Aspirin?
- Possible AAA or any other condition that may require surgery
- Pregnancy
- History of GI bleeding or peptic ulcers
- Concurrent anticoagulant therapy eg warfarin
What can be the side effects of Aspirin?
- Epigastric pain / discomfort
- Nausea / vomiting
- Gastritis
- GI bleeding
- NSAID induced bronchospasm
What is the adult dosage for Aspirin?
300mg - chewed, followed by small sip of water
What is the max daily dosage of Aspirin?
450 mg
What drug class is Aspirin?
Antiplatelet
Aspirin Pharmacology
Aspirin inhibits platelet aggregation by irreversibly inhibiting cyclo-oxygenase, reducing the synthesis of thromboxane A2 (an inducer of platelet aggregation) for the life of the platelet. This actions forms the basis of preventing platelets from aggregating to exposed collagen fibres at the site of vascular injury
What drug class is Droperidol?
Antipsychotic
What are the indications for Droperidol?
Acute behavioural disturbances (with a SAT Score >2)
What are the contraindications for Droperidol?
Absolute:
- Allergy / adverse drug reaction
- Parkinson’s disease
- Known Lewy body dementia
- Previous dystonic reaction to droperidol
- < 8 years
Relative: (requires consult line)
- suspected sepsis
What are the side effects of Droperidol?
Vasodilation / hypotension
Extrapyramidal effects eg dystonic reactions (rare)
What is the presentation of Droperidol?
Vial 10mg/2mL
What is the IM & IV Adult dosage of Droperidol for a patient aged 13-15 years? Does it require a consult?
0.1 - 0.2 mg.kg
Single max dose 10mg
May be repeated once at 15 min
Total max dose 20mg
It requires a consult and approval
What is the IM & IV Adult dosage of Droperidol for a patient over 65 years? Does it require a consult?
5mg
May be repeated once at 15min
Total max dose 10mg
Consult and approval is required
What is the IM & IV Adult Droperidol dosage for a patient aged 16 to < 65 years? Does it require a consult?
10mg
May be repeated once at 15 min
Totak max dose 20mg
No consult required
What are the precautions for Droperidol?
Hypoperfused state
Concurrent use of CNS depressants
What drug class is Ondansetron?
Anti-emetic – 5-HT3 antagonist
What is the pharmacology of Ondansetron, how does it work?
Ondansetron is a serotonin 5-HT3 receptor antagonist. It works by blocking the action of serotonin, a natural substance that may cause nausea and vomiting.
What are the indications of Ondansetron?
Significant nausea / vomiting
What are the contraindications of Ondansetron?
Absolute:
- allergy / adverse drug reaction
- Congenital long QT syndrome
- Current apomorphine therapy (used in severe Parkinson’s)
- < 2 years
Relative:
- First trimester pregnancy (may only be administered for extreme and uncontrolled hyperemesis)
What can the adverse effects of Ondansetron be? Common and Rare
Common
- headache
- constipation
Rare
- hypersensitivity reactions (including anaphylaxis)
- ECG changes
What is Ondansetron’s Presentation?
Ampoule - 4mg/2mL
Oral tablet - 4mg
What is the adult dosage of Ondansetron PO or IM?
4-8mg
Total max dose 8mg
Must not be given within 8 hours of previous administration