Pass the PSA Flashcards
TSH 0.3, what should you do to levothyroxine dose?
Decrease it
TSH 5.2, what should you do to levothyroxine dose?
Increase it
Cause of secondary hypothyroidism
Pituitary damage
Reduced TSH causing reduced TH
Secondary cause of hyperthyroidism
Pituitary tumour
1st line treatment of diabetic neuropathy
Duloxetine (SNRI)
Treatment of opioid overdose (low RR, drowsy)
Naloxone
Which pain killer can lower seizure threshold?
Tramadol
Which pain killer is good in renal failure because it isn’t really excreted?
Tramadol
Which drug do you give for first-line T2DM in BMI 18, creatinine 172?
Sulphonyurea e.g. gliclazide
First-line treatment of focal epilepsy
Lamotrigine
1st prescription for hyperkalaemia
10U actrapid with 100ml of 20% dextrose over 30 minutes
What interacts with warfarin to increase INR?
Erythromycin
Drugs to stop before surgery
I LACK OP
Insulin
Lithium
Aspirin
COCP
K+ sparing diuretics
Oral hypoglycaemics
Perinopril (ACEi)
When should you ideally stop COCP before surgery?
4-6weeks!
What should you stop in haemoptysis and any bleeding?
Anticoagulants e.g. aspirin and enoxaparin
CYP450 inducers
PC BRAS
Phenytoin
Carbamazepine
Barbiturates
Rifampicin
Alcohol (chronic excess)
Sulphonyureas
CYP450 inhibitors
AODEVICE
Allopurinol
Omeprazole
Dislfiram
Erythromycin
Valproate
Isoniazid
Ciprofloxacin
Ethanol (acute)
When should you stop ACEi and K+ sparing diuretics before surgery?
The day of
Causes of hyperkalaemia
DREAD
Diuretics (K+ sparing) and ACEi and dalteparin (LMWH)
Renal failure
Endocrine (Addison’s)
Artefact
DKA!
Steroid side effects
Stomach ulcers
Thin skin
Edema
Right heart failure
Osteoporosis
Infection
Diabetes!!!!!
Cushing’s syndrome
NSAID contraindications
Clotting issues
Heart failure
Asthma
Indigestion
Renal failure
CHAIR
NSAID contraindications
Clotting issues
Indigestion
Renal failure
Asthma!
Heart failure
CHAIR
How much paracetamol in 30/500 tablet of co-codamol?
500mg
Typical maintenance fluid prescription in healthy individual
2 salty 1 sweet
1L bag of dextrose (8hr)
2L saline (8hr each)
Typical prophylactic LMWH for prophylaxis of blood clots in hospital
S/C 5000U dalteparin
Drug for nausea in heart failure
Metoclopramide
Drug for nausea in a normal patient
Cyclizine
Who shouldn’t get metoclopramide?
Parkinson’s patients
Drug causes of hypokalaemia
Loop diuretics
Thiazide diuretics
Side effects of ACEi
Cough
Worsen renal failure
Can trigger renal failure in renal artery stenosis
Hyperkalaemia
Rheumatoid pt on methotrexate, got a UTI and given trimethoprim, what should you do?
Stop the methotrexate (current infection)
Change trimethoprim because too much folate antagonism
Furosemide can lead to which electrolyte abnormalities?
Hyponatraemia
Hypokalaemia
Drugs to stop in hyperkalaemia
ACEi
Thiazide diuretics e.g. eplerone
Drug causes of neutropaenia
Clozapine
Carbimazole
Causes of microcytic anaemia
Iron deficiency
Thalassaemia
Sideroblastic