Medication counselling Flashcards
(24 cards)
Warfarin Contraindications?
pregnancy
active bleeding
significant risk of bleeding
How does Warfarin work?
Thins the blood to prevent blood clots by blocking vitamin K (as this vitamin is responsible for making proteins which cause blood clotting)
How do you take Warfarin + time course?
Once daily, usually in the evening. 3 months for DVT, 6 months for PE, lifelong for AF.
Monitoring for Warfarin?
Start at 5mg. INR at day 3,4 and 5 - adjust dose accordingly. Then regular checks.
Interactions for Warfarin (what to warn patients about?)
Avoid liver, spinach, cranberry juice, alcohol binges, NSAIDs/aspirin
Significant side effects of warfarin?
- Seek help if significant bleeding / head injury.
- diarrhoea, hair loss, rash and nausea.
Contraindications for DOAC’s?
- significant renal impairment
- significant risk of bleeding
- active bleeding
How do DOAC’s work?
Thins the blood to prevent blood clots.
DOAC’S - treatment course and how is it taken?
- once/twice daily tablet
- 3 months for DVT, 6 months for PE, lifelong for AF.
DOAC’s - monitoring?
- none regularly
- check renal function before and annually.
How does levothyroxine work?
- synthetic version of thyroxine - brings back thyroid function back to normal.
Levothyroxine - treatment course and how to take it?
- Once daily tablet before breakfast
- taken long term
- changes every 4-6 weeks until effective
Levothyroxine - monitoring?
TSH every 2-3 months until stable. Once stable - annually.
Levothyroxine - side effects?
rare
hypo/hyperthyroidism
Statin - contraindications?
pregnancy
how do statins work?
stop the liver making cholesterol
Statins - treatment course and how to take?
once daily tablet in the evening, taken long term
Statins - monitoring?
- review in 4 weeks, then every 6-12 months - dose change based on results
- LFT’s before starting, at 3 months and at 12 months.
Statins - side effects?
- muscle pain
- headache
- itching
- GI upset
- rhabdomyolysis
COCP - contraindications?
- smoking ( + age >35y)
- Hx/FHx of thromboembolism, breast/cervical cancer, migraine with aura.
- BMI >35
How does COCP work?
- stops ovulation
- increases cervical mucus
- thins endometrium
Missed COCP advice?
1 missed - take immediately, continue as normal
2 missed - take 1 + condoms for 7 days
HRT - contraindications?
Undiagnosed PV bleeding
Pregnancy/breastfeeding
Oestrogen-dependent cancer
Acute liver disease
Uncontrolled hypertension
History of breast cancer
History of venous thromboembolism
Recent stroke/MI/angina
Risks of HRT?
- Venous thromboembolism (no risk with transdermal therapy)
- Stroke
- Breast cancer (small increase in risk, higher with combined HRT)
- Ovarian cancer (small increase if used >5 years)
- Endometrial cancer (only if women with uterus take oestrogen-only HRT – this is why oestrogen-only HRT is only used in women with no uterus)
- Coronary heart disease (if started >10 years after menopause)