Endocrine/Metabolic Flashcards
Identify familial hypercholesteraemia
Total cholesterol > 7.5
Treatment familial hypercholesteraemia
High dose statins
Treatment hypercalcaemia
Rehydration within saline then bisphosphonates
Identify hypocalcaemia
Tetany - twitching, cramping, spasm
Trouseus sign
Treatment hypocalcaemia
IV calcium gluconate
Common causes hyperkalaemia
AKI
Metabolic acidosis
Addisons
Drugs
ECG findings hyperkalaemia
Peaked T waves
Loss p wave
Broad QRS
Sinusoidal
Treatment hyperkalaemia
1) ECG
2) IV calcium gluconate - stabilise cardiac membrane
3) Calcium resonium - remove calcium from body
Common causes hypokalaemia
Alkalosis:
- vomiting
- hyperaldosteronism
Acidosis:
- diarrhoea
- renal tubular acidosis
Identify hypokalaemia
Muscle weakness, hypotonia
ECG - U waves, small T waves, prolong PR
Hypernatraemia treatment
Lower with caution due to risk cerebral oedema
Cause of hyponatraemia if urinary Na >20
Hypovolaemia:
- diuretics
- addisons
Euvolaemia:
- SIADH
- hypothyroidism
Cause of hyponatraemia if urinary Na <20
Na depression:
- diarrhoea, vomiting
- burns
Water excess:
- secondary hyperaldosteronism to HF or liver cirrhosis
- nephrotic syndrome
- psychogenic polydipsia
Treatment hyponatraemia
Hypovolaemia - saline
Euvolaemia - fluid restriction 500 to 1L/day
Hypervolaemia - fluid restriction
Treatment acute hyponatraemia with severe symptoms
Hypertonic saline (3% NaCl)
Treatment SIADH
Fluid restriction
Drugs which cause SIADH
SSRI
TCA
Carbamazepine
Sulphonylureas
Primary prevention hyperlipiademia
20mg atorvastatin
Secondary prevention hyperlipidaemia
80mg atorvastatin
Differentiate between type I and II diabetes
Decreased C-peptide in type 1
Diabetes diagnosis criteria
Glucose:
- fasting 7
- random 11.1
HbA1c:
- 48
If asymptomatic needs done twice
Pre-diabetes criteria
Fasting glucose 6.1-7
HbA1c 42-47
Treatment hypoglycaemia
Awake - oral glucose tablet or gel
Unconscious - IM glucagon or IV glucose 20% if IV access
Treatment diabetic ketoacidosis
1) Isotonic saline
2) IV insulin 0.1 units/kg/hour
What to do with insulin in diabetic ketoacidis
Long acting continue, stop short acting
Treatment diabetic nephropathy
1) Amitryptylin, duloxetine, gabapentin, pegrabulin
2) Try another
3) Tramadol and refer to pain management clinic
Treatment T2 diabetes
1) Metformin
2) If 58 + sulphonylurea/gliptin/pioglitazone/SGLT2
3) Triple therapy if still 58, metformin always one
4) Insulin OR
4) Metformin + sulphonylurea + GLP if obese instead of insulin
T2 HbA1c targets
On one drug - 48
On two or more - 53
Primary v secondary hypothyroidism
Primary - TSH raised and T3/4 low
Secondary - both low
Treatment hypothyroidism
Levothyroxine
Identify hashimotos thyroidism
Hypothyroidism
Firm non tender goitre
Anti-thyroid peroxidase antibodies
Identify sub acute (de quervains) thyroiditis
Phases - hyperthyroidism with painful goitre, euthyroid, hypothyroid, normal
Globally reduced uptake on thyroid scintigraphy
Treatment subacute thyroiditis
Supportive
Identify Graves disease
Hyperthyroidism Eye disease - exopthalmos Pretibial myoxedema TSH receptor stimulating antibodies Diffuse, homogenous increased uptake on scintigraphy
Treatment Graves
1) Propranol to control symptoms and refer
2) Carbimazole in seconary care
3) Radioactive iodine
Identify toxic multinodular goitre
Hyperthyrodism
Patchy uptake
Treatment toxic multinodular goitre
Radioiodine therapy
What is addisons
Primary hypoadrenalism - decreased cortisol and aldosterone
Identify Addisons
Hyperpigmentation
Hypoglycaemia
Hyperkalaemic acidosis, hyponatraemia