Endocrine Flashcards

1
Q

What can be seen in patients with hypothyroidism?

A

Hair loss, eyebrow loss, toad face, paleness, depression, dry hair, cold feet

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2
Q

What is the clinical presentation of Cushing’s syndrome?

A

Moonface, muscle wasting, buffalo hump, lemon of sticks appearance

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3
Q

What can be seen in patients with Addison’s disease?

A

Hyperpigmentation

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4
Q

What can be seen in patients with acromegaly?

A

Overgrowth of soft tissue, hands, and feet and jaw

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5
Q

What can be seen in patients with hyperandrogenism?

A

Hirturtism, temporal balding, acne

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6
Q

What can be seen in patients with hypopituitarism?

A

Yellowing of skin, thinning of skin, patients look older

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7
Q

What can be seen in patients with thyrotoxicosis?

A

Hair loss, pretibial myxedema, oncholysis, bulging eyes

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8
Q

When does type 1 diabetes present?

A

Usually at adolescents, but can be at any age

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9
Q

What causes type 1 diabetes?

A

Autoimmune destruction of pancreatic beta cells

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10
Q

How does type 2 diabetes present?

A

Increased prevalence in Asians, usually at 40

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11
Q

What causes type 2 diabetes?

A

Reduced insulin secretion with increased insulin resistance

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12
Q

What are the risk factors of type 2 diabetes a?

A

Obesity, lack of exercise, calorie and food excess

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13
Q

What are some other causes of DM?

A

Steroids, pancreatic obstruction, cancer, pancreatitis, pancreatic surgery, trauma, Cushing’s, acromegaly, glycogen storage, congenital, pregnancy, hyperthyroidism

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14
Q

What is the definition of hypoglycaemia?

A

Fasting glucose less than 3mmol/l

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15
Q

What are the signs and symptoms of a hypo?

A

Sweating, clamminess, anxiety, tremor, hunter, drowsiness, confusion, dizziness, coma, seizures

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16
Q

What are the symptoms of thyrotoxicosis?

A

Diarrhoea; weightloss, appetite gain (if , paradoxical weight gain in 10%); over-active; sweats; heat intolerance; palpitations; tremor; irritability; labile emotions; oligomenorrhoea ±infertility. Rarely psychosis; chorea; panic; itch; alopecia; urticaria.

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17
Q

What are the signs of thyrotoxicosis?

A

Pulse fast/irregular (AF or SVT; VT rare); warm moist skin; fine tremor; palmar erythema; thin hair; lid lag (fig 1; eyelid lags behind eye’s descent as patient watches your finger descend slowly); lid retraction (exposure of sclera above iris; causing ‘stare’). There may be goitre (fig 2); thyroid nodules; or bruit depending on the cause.

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18
Q

What are the symptoms of grave’s disease?

A

Eye swelling, pretibial myxedema, thyroid atrophy

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19
Q

What is the typical Graves patient?

A

Female, aged 40-60

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20
Q

What causes Graves?

A

circulating IgG autoantibodies binding to and activating G-protein-coupled thyrotropin receptors, which cause smooth thyroid enlargement and  hormone production (esp. T3), and react with orbital autoantigens.

21
Q

What can trigger Graves?

A

stress; infection; childbirth.

22
Q

Name 4 other causes of thyrotoxicosis

A

Toxic multinodular goitre:
• Toxic adenoma:
• Ectopic thyroid tissue:
• Exogenous: Iodine excess, eg food contamination, contrast media

23
Q

What are the symptoms of hypothyroidism?

A

Tired; sleepy, lethargic; mood; cold-disliking; weight; constipation; men- orrhagia; hoarse voice; memory/cognition; dementia; myalgia; cramps; weakness.

24
Q

Apart from BRADYCARDIA what are the signs of hypothyroidism?

A

BRADYCARDIC; reflexes relax slowly; ataxia (cerebellar); dry thin hair/skin; yawning/drowsy/coma (p844); cold hands ± T°; ascites ± non-pitting oedema (lids; hands; feet) ± pericardial or pleural effusion; round puffy face/double chin/obese; de- feated demeanour; immobile ± ileus; CCF.e

25
What are the causes of,primary hypothyroidism?
Hashimotos, atrophy, thyroidectomyk radiological treatment, drug induced, subclinical,
26
What are the causes of secondary hypothyroidism?
Insufficient TSH
27
What is Cushing's syndrome?
Excess glucocorticoid with loss of hypothalamus,pituitary adrenal axis
28
What can cause Cushing's syndrome?
Cushing's disease (pituitary adenoma) oral steroids, adrenal adenoma, adrenal hypertrophy, ectopic ACTH production
29
What are the signs of Cushing's?
Central obesity; plethoric, moon face; buffalo neck hump; supraclavicular fat distribution; skin & muscle atrophy; bruises; purple abdominal striae (fig 1); osteopo- rosis; BP; glucose; infection-prone; poor healing
30
What are the symptoms of Cushing's
Weight; mood change (depression, lethargy, irritability, psychosis); proximal weakness; gonadal dysfunction (irregular menses; hirsutism; erectile dys- function); acne; recurrent Achilles tendon rupture; occasionally virilization if .
31
What causes Addison's disease?
Destruction of adrenal cortex caused by autoimmune, TB, adrenal metastasis, lymphoma, adrenal haemorrhage,
32
What is Addison's?
Adrenal insufficiency
33
What are the signs of Addison's?
Often diagnosed late: lean, tanned, tired, tearful ± weakness, anorexia, dizzy, faints, flu-like myalgias/arthralgias. Mood: depression, psychosis, low self- esteem.12 GI: nausea/vomiting, abdominal pain, diarrhoea/constipation. Think of Addison’s in all with unexplained abdominal pain or vomiting. Pigmented palmar creases & buccal mucosa (ACTH; cross-reacts with melanin receptors). Postural hypo- tension. Vitiligo. Signs of critical deterioration (p846): Shock (BP, tachycardia), T°, coma.
34
What can cause hirsutism?
familial, idiopathic or are due to  androgen secretion by the ovary (), the adrenal gland (eg late-onset congenital adrenal hyperplasia, Cushing’s syndrome, adrenal cancer), or drugs (eg steroids)
35
What are the causes of gynaecomastia?
Hypogonadism (see BOX), liver cirrhosis (oestrogens), hyperthyroidism, tumours (oestrogen-producing, eg testicular, adrenal; HCG-producing, eg testicular, bronchial); drugs: oestrogens, spironolactone, digoxin, testosterone, marijuana
36
What is acromegaly?
Increased secretion of GH from pituitary tumour
37
What are the symptoms of acromegaly?
Acroparaesthesia (akron=extremities); amenor- rhoea; libido; headache; sweating; snoring; arthralgia; backache;
38
What are the signs of acromegaly?
Skin tags, puffy eyes, widely spaced teeth, coarsening face, increased growth of hands and feet and jaw, skin darkening, scalp folds, acanthosis nigrans, goitre, proximal weakness, carpal tunnel
39
What are the complications of acromegaly?
Impaired glucose tolerance (~40%), DM (~15%). •Vascular: Hypertension , left ventricular hypertrophy (±dilatation/CCF), cardiomyopathy, arrhythmias. There is risk of ischaemic heart disease and stroke (?due to BP ± insulin resistance and GH-in- duced increase in fibrinogen and decrease in protein S). • Neoplasia: colon cancer risk; colonoscopy may be needed.
40
What drug blocks over active thyroids?
Carbiamazole
41
Cotton will spots in the retina are signs of what?
Retinal ischaemia, which suggests worsening diabetes
42
What test is used to confirm adrenal suppression?
Synadhen teste
43
What is the first line oral hypoglycaemic for BMI>25?
Metformin
44
What does new vessel formation in the retina show?
Worsening diabetic retinopathy
45
What is the test for acromegaly?
OGTT
46
What should be tested for a possible diagnosis of subclinical hyperthyroidism?
Serum thyroid peroxidase antibodies
47
Confusion, drowsiness, polyuria and polydypsia is what until proven otherwise?w
Diabetic ketoacidosis
48
What is raided prolactin caused by?
Raised dopamine