Adrenals Flashcards

1
Q

Choose the most appropriate answer from the list.

  • Pituitary dependent Cushing’s disease
  • Adrenal tumour causing Cushing’s syndrome
  • Ectopic ACTH causing Cushing’s syndrome
  • Normal obese person
  • Cushing’s syndrome of indeterminate cause
  • Pituitary adenoma
  • Phaeochromocytoma
  • Primary adrenal insufficiency
  • Secondary adrenal insufficiency
  • Primary hyperaldosteronism
  • Secondary hyperaldosteronism
  • Adrenal medulla
  • Zona glomerulosa
  • Zona fasciculata
  • Zona reticularis

36-year old male presents with hypertension. Lab results: Na+ = 155mmol/L, K+ = 2.9mmol/L, pH = 7.46, low plasma renin activity.

A

Primary hyperaldosteronism

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2
Q

Choose the most appropriate answer from the list.

  • Pituitary dependent Cushing’s disease
  • Adrenal tumour causing Cushing’s syndrome
  • Ectopic ACTH causing Cushing’s syndrome
  • Normal obese person
  • Cushing’s syndrome of indeterminate cause
  • Pituitary adenoma
  • Phaeochromocytoma
  • Primary adrenal insufficiency
  • Secondary adrenal insufficiency
  • Primary hyperaldosteronism
  • Secondary hyperaldosteronism
  • Adrenal medulla
  • Zona glomerulosa
  • Zona fasciculata
  • Zona reticularis

50-year old female with the following lab results: Na+ = 130mmol/L, K+ = 5.9mmol/L, glucose = 3.4mmol/L, urea = 7.2 mmol/L, Ca2+ = 2.8 mmol/L. A short SynACTHen test shows cortisol = 600nmol/L half an hour after administration.

A

Secondary adrenal insufficiency

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3
Q

Choose the most appropriate answer from the list.

  • Pituitary dependent Cushing’s disease
  • Adrenal tumour causing Cushing’s syndrome
  • Ectopic ACTH causing Cushing’s syndrome
  • Normal obese person
  • Cushing’s syndrome of indeterminate cause
  • Pituitary adenoma
  • Phaeochromocytoma
  • Primary adrenal insufficiency
  • Secondary adrenal insufficiency
  • Primary hyperaldosteronism
  • Secondary hyperaldosteronism
  • Adrenal medulla
  • Zona glomerulosa
  • Zona fasciculata
  • Zona reticularis

A 45-year old female patient presents with cushingoid features. A dexamethasone suppression test shows undetectable ACTH, cortisol = 750nmol/L.

A

Adrenal tumour causing Cushing’s syndrome

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4
Q

Choose the most appropriate answer from the list.

  • Pituitary dependent Cushing’s disease
  • Adrenal tumour causing Cushing’s syndrome
  • Ectopic ACTH causing Cushing’s syndrome
  • Normal obese person
  • Cushing’s syndrome of indeterminate cause
  • Pituitary adenoma
  • Phaeochromocytoma
  • Primary adrenal insufficiency
  • Secondary adrenal insufficiency
  • Primary hyperaldosteronism
  • Secondary hyperaldosteronism
  • Adrenal medulla
  • Zona glomerulosa
  • Zona fasciculata
  • Zona reticularis

A 65-year old male patient presents with cushingoid features. A high dose dexamethasone suppression test shows ACTH 25 pmol/L (high), cortisol = 750nmol/L.

A

Ectopic ACTH causing Cushing’s syndrome

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5
Q

Choose the most appropriate answer from the list.

  • Pituitary dependent Cushing’s disease
  • Adrenal tumour causing Cushing’s syndrome
  • Ectopic ACTH causing Cushing’s syndrome
  • Normal obese person
  • Cushing’s syndrome of indeterminate cause
  • Pituitary adenoma
  • Phaeochromocytoma
  • Primary adrenal insufficiency
  • Secondary adrenal insufficiency
  • Primary hyperaldosteronism
  • Secondary hyperaldosteronism
  • Adrenal medulla
  • Zona glomerulosa
  • Zona fasciculata
  • Zona reticularis

A 28-year old man presents with hypertensive episodes. Lab results: Na+ 140mmol/L, K+ = 4.1mmol/L, random cortisol = 200nmol/L. CT shows an adrenal mass, which region is most likely to be affected?

A

Adrenal medulla

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6
Q

Choose the most appropriate answer from the list.

  • Phaeochromocytoma
  • Adrenal CT Scan
  • Conn’s syndrome
  • Spironolactone
  • Cushing’s syndrome
  • Zona glomerulosa
  • Alpha blockade
  • Zona fasciculata
  • Beta blockade
  • Low dose dexamethasone test
  • Surgery
  • 24 hour ambulatory blood pressure
  • Pituitary MRI
  • Aldosterone- renin ratio
  • High dose dexamethasone test
  • Glucose tolerance test

What is the first line of treatment in phaeochromocytomas?

A

Alpha blockade

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7
Q

Choose the most appropriate answer from the list.

  • Phaeochromocytoma
  • Adrenal CT Scan
  • Conn’s syndrome
  • Spironolactone
  • Cushing’s syndrome
  • Zona glomerulosa
  • Alpha blockade
  • Zona fasciculata
  • Beta blockade
  • Low dose dexamethasone test
  • Surgery
  • 24 hour ambulatory blood pressure
  • Pituitary MRI
  • Aldosterone- renin ratio
  • High dose dexamethasone test
  • Glucose tolerance test

A 25 year old female patient presents with high levels of aldosterone and low levels of renin. On examination the patient is found to be hypertensive.

A

Conn’s syndrome

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8
Q

Choose the most appropriate answer from the list.

  • Phaeochromocytoma
  • Adrenal CT Scan
  • Conn’s syndrome
  • Spironolactone
  • Cushing’s syndrome
  • Zona glomerulosa
  • Alpha blockade
  • Zona fasciculata
  • Beta blockade
  • Low dose dexamethasone test
  • Surgery
  • 24 hour ambulatory blood pressure
  • Pituitary MRI
  • Aldosterone- renin ratio
  • High dose dexamethasone test
  • Glucose tolerance test

A 75 year old lady reports to her GP of very frequent panic attacks. She complains of excessive sweating and following investigations, hypertension is detected and raised levels of catecholamines are found in the urine.

A

Phaeochromocytoma

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9
Q

Choose the most appropriate answer from the list.

  • Phaeochromocytoma
  • Adrenal CT Scan
  • Conn’s syndrome
  • Spironolactone
  • Cushing’s syndrome
  • Zona glomerulosa
  • Alpha blockade
  • Zona fasciculata
  • Beta blockade
  • Low dose dexamethasone test
  • Surgery
  • 24 hour ambulatory blood pressure
  • Pituitary MRI
  • Aldosterone- renin ratio
  • High dose dexamethasone test
  • Glucose tolerance test

A 53 year old male patient presents with constantly high blood pressure. He is an investment banker and initially the elevation is thought to be related to stress. The patient’s Na, K and urea are all normal. His glucose is however taken randomly and is found to be elevated at 7.9mmol/L. What is the first investigation that needs to be carried out in this patient?

A

24 hour ambulatory blood pressure

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10
Q

Choose the most appropriate answer from the list.

  • Phaeochromocytoma
  • Adrenal CT Scan
  • Conn’s syndrome
  • Spironolactone
  • Cushing’s syndrome
  • Zona glomerulosa
  • Alpha blockade
  • Zona fasciculata
  • Beta blockade
  • Low dose dexamethasone test
  • Surgery
  • 24 hour ambulatory blood pressure
  • Pituitary MRI
  • Aldosterone- renin ratio
  • High dose dexamethasone test
  • Glucose tolerance test

Which part of the adrenal cortex produces glucocorticoids in response to the Adrenocorticotrophic hormone ? (ACTH)

A

Zona fasciculata

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