Endo Flashcards
Common Signs and symptoms of hyperthyroidism
1)Heat intolerance
2)Tachycardia and palpitations
3)Heat intolerance
4)Weight loss
5)Miscarriage
6)Nervousness and irritability
7)Poor sleep
8)Shakiness and myopathy:hand tremors
9)Diarrhoea
10)Shorter or lighter menstrual periods(oligomenorrhea)
Atypical signs and symptoms of hyperthyroidism
Atrial fibrillation in elderly
Single nodule mass in elderly(toxic adenoma)
Apathy
Steatorrhea(malabsorption syndrome)
Acute psychotic Attack:violence and anger
Young onset osteoporosis
Endocrinology causes of osteoporosis
- Hyperthyroidism
- Cushing’s syndrome
- Hypogonadism
Signs of thyrotoxic periodic paralysis
-Suddenly unable to move eg getting up from toilet
-More common in Asians
-Together with typical hyperthyroidism signs(?)
Causes of orbital swelling
Hyperthyroid
Angioedema in allergic run
Raynaud’s disease
Difference in texture of Graves and Hashimotos
Graves thyroid tends to be soft, Hashimoto will be firm
Indications for PTU use over carbimazole
1) 1st and 2nd trimester of pregnancy
2) Thyrotoxic storm(because of inhibition of peripheral conversion of t3 to t4
Indications for thyroidectomy
4Cs
Cancer
Compression
Cosmetics
Complications
Risk of thyroidectomy
1) Vocal cord palsy and stridor
2) post operative hypocalcemia
3) Early onset dementia if not compliant to medications,because of complete removal of thyroid
Signs of thyrotoxic/thyroid storm
Young,high fever,tachycardia and goitre
What is the renal threshold level for glucose?
about 160–180 mg/dL (8.9-10 mmol/L), the proximal tubule becomes overwhelmed and begins to excrete glucose in the urine. This point is called the renal threshold for glucose (RTG).
6Is of DKA and HHS
Insulin: Undiagnosed or noncompliant
Infection: UTI, pneumonia etc
Inflammation: cholecystitis, pancreatitis etc
Infarction: AMI,stroke etc
Intoxication: Alcohol,toxins
Iatrogenic: drugs,surgery
Mx of DKA acronym
SPIDER
Saline
Potassium
Insulin
Dextrose
Electrolyte abnormalities+ Eat nothing
Reason(underlying)
Sx of DKA
Polyuria(due to glucosuria)
Dehydration
N/V
Abdominal pain
Kussmaul breathing
Sweet breath(acetate)
In thyroid PE carotid bruit,thyroid acropachy and oncolysis is specific for?
Graves
Causes of Addison disease(primary adrenal insufficency)
- Ischemic injury and necrosis due to shock(Waterhouse Friderichsen syndrome)
- DIVC
- Trauma(blunt or postoperative)
- R
enal mass causing hemorrhage
. Short course of corticosteroids - Autoimmune causes
- Infectious causes eg TB, CMV
- Infiltrative causes( amyloidosis, Hemochromatosis)
- VTEs
- Vitamin B5 deficiency
Management of DKA
SPIDER
- IV fluids,saline or hartmanns
- Balance electrolytes especially K
- IV insulin infusion
- Treat underlying cause
- Avoid complications
Types of diabetes insipidus
CDI: Central
NDI: Nephrogenic
Antihypertensive contraindicated in pheochromocytoma
Beta blocker: releases peripheral adrenaline at B2, may cause hypertensive crisis
USE alpha blocker: phenoxybenzamine
Mx of pheochromocytoma
Pharmacological: Alpha blocker phenoxybenzamine
Surgical: Adrenalectomy
Condition that is most specific for Pretibial Myxedema
Graves disease, esp TrAb positive
Gold standard test for acromegaly
Growth hormone suppression test with 75g OGTT and 30mins serial HGH measurements
Causes of tiredness in acromegaly patient
- DM
- Anemia
- OSA
- Panhypopituitarism
Management of acromegaly
Dopamine agonists eg bromocriptine
Surgical: Trans sphenoidal surgery
Script for acromegaly mx
“Acromegaly is a complex condition which will require involvement of the patient, endocrinologist and neurosurgeon
Patient education should be first followed by referral to neurosurgeon
But it is difficult to completely treat so subsequent pharmacotherapy(3 drugs) and radiotherapy will be required
Complications such as orthopedic,endocrine, CVS and GI will have to be managed”
Drug for pheochromocytoma
PHEnoxybenzamine for PHEochromocytoma
Signs suggestive of myxedema coma in comatose patient
Bradycardia and hypothermia(not commonly seen in other causes of collapse)
SEs of metformin
Lactic acidosis
SEs of SGLT2
- Euglycemic KA
- Hypotension
SE of pioglitazone
Fluid overload
Mx of severe Hypoglycemia
D50 IV 40ml stat
IM glucagon 1mg if no IV access
Mx of mild hypoglycemia
15g oral dextrose
When to suspect secondary HTN
1) Young HTN
2) Treatment resistant HTN(despite 3 anti hypertensives)
3) Features of swcondary etiologies
Drug of choice for pheochromocytoma
Alpha blocker
NOT beta, will cause pheochromocytoma crisis
Mx of acute addisonian crisis
1) 100mg bolus IV hydrocortisone then 200mg infusion
2) 1l crystalloids
3) Treat precipitant
Test for suspected Addisons disease
Random serum cortisol and ACTH
What is the short synacthen test for
Synthetic ACTH to test for adrenal response in producing cortisol
Cause of Hyperpigmentation in Addisons disease
High ACTH activates melanocytes in skin
Amount of time after giving PTU/carbimazole to give Lugols Iodine in thyroid storm
1hr
MOA of teriperatide
PTH analogue. PTH in pulses instead of being chronically high has an Anabolic effect
Min Creatinine Clearance for bisphosphonates
30
Causes of central diabetes insipidus
- Pituitary tumor
- Neurosurgical intervention
- Sheehan and RT?
Causes of nephrogenic diabetes insipidus
1) Uncontrolled hyperglycemia
2) Drugs eg lithium
3) Electrolytes eg HyperCa, hypoK
4) Renal disease eg ADPKD
5) inherited(rare)
4 stages of hypertensive retinopathy
- Silver wiring
- AV nipping
- Cotton wool spots, dot and blot hemorrhages
- Papilloedema
Cause of metabolic acidosis with hypoK
Renal Tubular Acidosis
Hyperglycemic emergency?
Cause of hypertension with hypokalemia
- Conn’s syndrome
- Cushing syndrome
- Pheochromocytoma
- Hyperthyroidism
Causes of metabolic alkalosis
- Conn’s syndrome
- Cushing syndrome
- Liddle syndrome
Doses for HyperK mx
Calcium gluconate: 10ml 10% over 10mins
Iv insulin 10units
20ml D50
magic number for Calcium and Vit D intake
1000mg of Ca and 1000U of vit D
When is slow bolus calcium gluconate diluted in 100ml and infused over 1hr
Post thyroidectomy
Syndromes a/w pheochromocytoma
- MEN 2A/2B
- Neurocutaneous syndromes
- NF1
- Sturge Weber
- Tuberous Sclerosis
- Von Hippel Lindau
GFR cutoff for bisphosphonate use for osteoporosis
30ml/min/1.73m^2
Which endocrinopathies are adrenal vein sampling useful for
Only for hyperaldosteronism
-No role in Cushings or pheochromocytoma
Bone vs Liver ALP is heat sensitive
ALP from bone pathologies is heat sensitive( BONE BURNS)