Case Studies Flashcards
(152 cards)
A 42-year-old man undergoes trans-sphenoidal surgery for a large, non-functioning pituitary macro-adenoma. Preoperatively, dynamic pituitary hormone tests were normal, as was his fluid intake and output. Two days following surgery he developed acute polyuria, extreme thirst, and polydipsia. His urine output over the next 24 hours was 6 litres, with frequent nocturia
DIABETES INSIPIDUS
A 48-year-old man has a 4-month history of increasing fatigue and anorexia. He has lost 5.5 kg and noticed increased skin pigmentation. His mother has Hashimoto’s thyroiditis and one of his sisters has type 1 diabetes. His blood pressure is 110/85 mmHg (supine) and 92/60 mmHg (sitting). His face shows signs of wasting and his skin has diffuse hyperpigmentation, which is more pronounced in the oral mucosa, palmar creases, and knuckles
ADDISON’S DISEASE
A 75-year-old man presents to his GP abdominal pain and constipation. He has a past medical history of kidney stones and fracture. He has also been feeling down recently. On ECG he has a short QT interval
HYPERCALCAEMIA
A 68-year-old woman presents to her GP with spasms of the hands and feet, cramps and numbness. On examination, when tapping over her facial nerve, her face twitches. When the doctor tried to take her blood pressure, she experiences a carpopedal spasm. On ECG she has a prolonged QT interval.
HYPOCALCAEMIA
A 12-year-old white girl is brought to the emergency department by her parents due to 12 hours of rapidly worsening nausea, vomiting, abdominal pain, and lethargy. Over the last week she has felt excessively thirsty and has been urinating a lot. Physical examination reveals a lean, dehydrated girl with deep rapid respirations, tachycardia, and no response to verbal commands
T1DM
A 45-year-old man with a history of type 2 diabetes is admitted directly from clinic for a serum glucose of 53.8 mmol/L (970 mg/dL). He was started recently on basal bolus insulin therapy after several years of treatment with oral antiglycaemic agents. However, he reports not having followed his insulin prescription because he struggles to inject himself. For the past 2 weeks he has had polyuria and polydipsia, and has lost 5 kg in weight. He has also noted a progressively worsening cough for approximately 3 weeks that is productive of greenish-brown sputum.
HYPEROSMOLAR HYPERGLYCAEMIC STATE
A 38-year-old woman, who in the past had tried to lose weight without success, is happy to see that in the last 2 months she has lost about 11 kg (25 pounds). She also has difficulty sleeping at night. Her husband complains that she is keeping the house very cool. She recently consulted her ophthalmologist because of redness and watering of the eyes. Eye drops were not helpful. She consults her doctor for fatigue and anxiety, palpitations, and easy fatigability. On physical examination, her pulse rate is 100 bpm and her thyroid is slightly enlarged. Conjunctivae are red and she has a stare.
GRAVE’S
A 45-year-old white woman presents with symptoms of fatigue, depression, and mild weight gain. Physical examination demonstrates heart rate of 58 beats per minute, coarse dry skin, and bi-lateral eyelid oedema
HYPOTHYROIDISM
A 50-year-old woman with a past medical history of renal disease notices she is getting fatigue and chest pain. After examination she also presents with hyporeflexia, flaccid paralysis and cardiac arrhythmia. On ECG they find tall, tented T waves with absent P waves
HYPERKALAEMIA
A 45-year-old woman presents with sweating, nausea, and headache. She does not have any significant prior medical illnesses. The symptoms typically occur when she has skipped a meal or not had anything to eat for several hours, although they have rarely occurred within a couple hours of a meal as well. She does not snack between meals and reports that her weight has been stable. She has never lost consciousness, but has become very confused and distractible. If she does not eat soon after, she begins to feel nauseated and sweaty. She has found that the symptoms quickly resolve after eating
HYPOGLYCAEMIA
A 76-year-old white man presents to the emergency department with night sweats, headache and oedema. He recently suffered a pulmonary infection. On examination, his jugular venous pressure is dramatically increased. The patient’s plasma and urine osmolality are reduced and he has a high urinary sodium.
SIADH
An overweight 55-year-old woman presents for preventative care. She notes that her mother died of diabetes, but reports no polyuria, polydipsia, or weight loss. BP is 144/92 mmHg, fasting blood sugar 8.2 mmol/L (148 mg/dL), HbA1c 65 mmol/mol (8.1%), LDL-cholesterol 5.18 mmol/L (200 mg/dL), HDL-cholesterol 0.8 mmol/L (30 mg/dL), and triglycerides 6.53 mmol/L (252 mg/dL)
T2DM
A 50-year-old man presents with weakness, constipation and cramping. He was recently started on hydrochlorothiazide (a thiazide diuretic) and on ECG they find flat T waves, ST depression and U waves
HYPOKALAEMIA
A 20-year-old man is brought to the accident and emergency department with abdominal pain, nausea, and vomiting with increasing polyuria, polydipsia, and drowsiness since the previous day. He was diagnosed with type 1 diabetes 2 years previously. He mentions that he ran out of insulin 2 days ago. Physical examination reveals Kussmaul’s breathing (deep and rapid respiration due to ketoacidosis) with acetone odour and mild generalised abdominal tenderness without guarding and rebound tenderness
DIABETIC KETOACIDOSIS
A 28-year-old woman presents with a 2-year history of hypertension, associated with nocturia (4-5 times per night), polyuria, palpitations, limb paraesthesias, lethargy, and generalised muscle weakness. There is no other past medical history. Physical examination is unremarkable apart from a blood pressure (BP) of 160/100 mmHg, global hyporeflexia, and weak muscles
CONN’S SYNDROME
A 47-year-old man presents with arthritic pain of knees and hips, soft-tissue swelling, and excessive sweating. He also noticed progressive enlargement of the hands and feet. He has been taking antihypertensive medicine for the past 3 years. On physical examination, he has coarse facial features with prognathism and prominent supra-orbital ridges. The tongue is enlarged and the fingers are thickened. His wife complains that he frequently snores.
ACROMEGALY
A 34-year-old woman presents with complaints of weight gain and irregular menses for the last several years. She has gained 20 kg over the past 3 years and feels that most of the weight gain is in her abdomen and face. She notes bruising without significant trauma, difficulty rising from a chair, and proximal muscle wasting. She was diagnosed with type 2 diabetes and hypertension 1 year ago.
CUSHING’S SYNDROME
A 33-year-old woman presents to her doctor complaining of a several-month history of episodic palpitations and diaphoresis. She has been experiencing progressive episodic headaches, which are not relieved by paracetamol. She has a history of kidney stones and hypercalcaemia. Her family history is unremarkable; specifically, there is no history for tumours, endocrinopathies, or hypertension. Physical examination reveals a BP of 220/120 mmHg and hypertensive retinal changes
PHAEOCHROMOCYTOMA
A 42-year-old man presents with a recent history of abdominal pain, distension, and nausea. Urea breath testing for Helicobacter pylori is positive
GASTRITIS
A 22-year-old male presents to the emergency department with abdominal pain, anorexia, nausea, and low-grade fever. Pain started in the mid-abdominal region 6 hours ago and is now in the right lower quadrant of the abdomen. The pain was steady in nature and aggravated by coughing
ACUTE APPENDICITIS
A 77-year-old man presents to his general practitioner with weight loss of 6.8 kg (15 lbs) and a 3-month history of dysphagia and abdominal pain. The only abnormal finding on physical examination is stools positive for occult blood. He is referred for an upper endoscopy, which shows an exophytic, ulcerated mass in the cardia of the stomach.
GASTRIC CANCER
A 27-year-old man with a 3-month history of rectal bleeding and diarrhoea is referred for evaluation. Laboratory tests show mild anaemia, a slightly elevated sedimentation rate, and the presence of white blood cells in stool. Stool culture is negative. Colonoscopy shows continuous active inflammation with loss of vascular pattern and friability from the anal verge up to 35 cm, with a sharp cut-off
ULCERATIVE COLITIS
A 46-year-old woman presents with fatigue and is found to have iron deficiency with anaemia. She has experienced intermittent episodes of mild diarrhoea for many years, previously diagnosed as irritable bowel syndrome and lactose intolerance. She has no current significant gastrointestinal symptoms such as diarrhoea, bloating, or abdominal pain. Examination reveals two oral aphthous ulcers and pallor. Abdominal examination is normal and results of faecal testing for occult blood are negative
COELIAC DISEASE
A man in his early 70s presents with acute-onset, colicky, lower abdominal pain and distension, failing to pass flatus or faeces in the preceding 12 to 24 hours. He reports a recent change in his bowel habit with increased frequency of defecation, some weight loss, and the passage of blood mixed with his stools
LARGE BOWEL OBSTRUCTION