4th 20 Flashcards
Lithium toxicity early symptom
Restlessless
Lithium toxicity symptoms
Restlessness
D&V
Agitation
Tremor
Muscle fasciculations
When does lithium toxicity typically occur in patients on treatment?
Usually when they are ill or dehydrated
SSRI overdose and serotonin syndrome eye symptom
Nystagmus
Which drugs often cause hypokalaemia?
Loop diuretics e.g. furosemide
Why do loop diuretics cause hypokalaemia?
They block the Na/K/Cl transporter, so K+ can’t be retreived, but keeps more water in the lumen -> urine
ACEi example
Remipril
Enalapril
ACEi can cause what change in potassium?
Excretion of K+ because inhibiting retention with aldosterone. SO causes hyperkalaemia.
Theophylline is used for what?
Bronchodilation in COPD and refractory asthma
When should you check theophylline levels after commencing treatment?
5 days
Chronic heart failure with reduced ejection fraction treatment
ACEi
B blocker (unless contraindicated = bradycardia or asthma)
These drugs reduce morbidity and mortality
Can add spironolactone according to guidelines if these dont control it well enough
Clarithromycin (macrolide) and statins interact to cause what?
What may be increased in the bloods?
Rhabdomyolysis, creatinine kinase
Treatment of GORD
Omeprazole 20mg PO once daily
Verapamil hydrochloride is a …
CCB
CCB is used to…
Reduce blood pressure