Mediculus
@Mediculus
RedReflex and BlindSpot present: Mediculus. Revision tweets for medical students!
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Large villous adenomas of the rectum may have marked secretory activity and result in the development of hypokalaemia as rectal secretions are rich in potassium.
Warfarin interferes with fibrin formation by affecting carboxylation of glutamic acid residues in factors 2,7,9 and 10.
The dorsalis pedis artery is a direct continuation of the anterior tibial artery.
Intraductal papilloma usually cause single duct discharge. The fluid is often clear, although it may be blood stained.
The ulnar paradox: the higher the lesion, the less the clawing of the fingers seen clinically.
Ulcerative colitis spreads in a progressive distal to proximal manner. Over time a dysplastic transformation is recognised.
The trachea commences at C6. It terminates at the level of T5 (or T6 in tall subjects in deep inspiration).
Pelvic fractures may cause laceration of the urethra. Urinary retention, blood at the urethral meatus and a high riding prostate on digital rectal examination are the typical features.
Torsades de pointes ('twisting of the points') is a rare arrhythmia associated with a long QT interval. It may deteriorate into ventricular fibrillation and hence lead to sudden death
In those patients who present with a suspected hip fracture, but normal plain films, the most accurate investigation is an MRI or CT scan.
Causes of severe thrombocytopenia: ITP DIC TTP Haematological malignancy
Testicular malignancy is always treated with orchidectomy via an inguinal approach. This allows high ligation of the testicular vessels and avoids exposure of another lymphatic field to the tumour.
Meniere’s Disease: episodes of severe disabling vertigo, which are closely associated with tinnitus, deafness and aural fullness
Fibroadenoma of the breast: commonly found in teenagers with an increased incidence in those on the oral contraceptive pill
Dermatitis herpetiformis is a chronic, itchy, blistering skin condition which is seen in patients with coeliac disease
Use beta blockers (eg propranolol) for rapid control of symptoms in thyrotoxicosis
Streptococcus pneumoniae and Neisseria meningitidis account for 80% of acute bacterial meningitis in adults
Signs of Cirrhosis: jaundice, clubbing, palmer erythema, easy bruising, asterixis, spider nevi, gynecomastia
Hematuria: blood in the urine (macroscopic = grossly visible; microscopic = only visible with microscope)
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