Uworld Misc. Flashcards
(732 cards)
Arrhythmia ️Assoc. With digitalis toxicity
A-tach with av block
Usually it is rare for both of these to occur at the same time so this is pretty diagnostic
Initial Tx for Hypovolemic Hypernatremia and correction rate
Isotonic saline
Can use hypotonic saline once the patient is hemodynamically stable and euvolemic
Correction rate: .5meq/dl/hr without exceeding 12 in 24 hrs
This is done to prevent cerebral edema
Hairy cell leukemia
B cell neoplasm associated with BRAF mutations
Clinical: Pancytopenia (infections, anemia, ️Bleeding)
Splenomegaly
Dx: BM biopsy
Tx: chemo
Isolated increased ALK phos in a patient with an enlarging cap size
Paget’s disease
Vasospastic angina
Hyperreactivity of ️coronary smooth muscle leading to transient myocardial ischemia
Presents in young patients (<50) who are smokers but lack other RFs for heart disease; have recurrent chest discomfort
️Occurs at rest and during sleep; resolves spontaneously
Diagnosis: ST elevations with exertion however, ️coronary angiography shows no CAD
Tx: CCB (preventative), nitroglycerin (acute)
Earliest renal abnormality in diabetes patients
Glomerular hyper filtration
ACEIs help prevent this and therefore reduce chances of developing diabetic nephropathy
Warm agglutinin AIHA
Caused by drugs (usually penicillins), viral infxns, AI disorders (lupus), and immunodeficiency or Lymphoproliferative states
Ss: Normocytic Anemia with hemolysis
DAT (+) with anti-IgG or anti-C3
Tx: corticosteroids, splenectomy if necessary
Serum osmolality calculatio
[2 X (Na)] + [(glucose)/18] + [(BUN)/2.8]
Hemodynamic measurements in hypovolemic shock
RA pressure (preload) (pulmonary capillary wedge) ⬇️
Cardiac index (output) ⬇️
SVR (Afterload) ⬆️
MvO2 ⬇️
Cavernous sinus thrombosis
Can occur following infections of the facial skin, sinuses, and orbit ➡️ life-threatening CST and intracranial hypertension
Develop low grade fever, headache, and periorbital edema alongside CN II, IV, V, and VI pansies
Tx: Broad spectrum antibiotics and reversal of cerebral herniation if necessary
IgA nephropath
Gross ️hematuria following a URI that happens within 5 days of the infxn
⭐️ Common in young adult men ages 20-30
Ss: Recurrent gross ️hematuria
Extrarenal manifestations of ADKPD
Cerebral aneurysm
Hepatic or pancreatic cysts
Mitral valve prolapse
Aortic regurgitation
Colonic Diverticulation
Ventral or inguinal hernia
Dx: Abdominal US
Cauda equina syndrome
Bilateral and severe radicular pain
Saddle anesthesia
Asymmetric motor weakness
Hyporeflexia
Late onset bowel and bladder dysfunction
Conus medullaris syndrome
Sudden onset of severe back pain
Perianal anesthesia
Symmetric motor weakness
Hyperreflexia
Early onset bowel and bladder dysfnxn
Tx for tachyarrhythmia with hemodynamic instability
Synchronized cardio aversion
Disseminated histoplasmosis
Found in Midwestern US in soil contaminated by bird or bat droppings
S/s: Systemic (fevers, malaise, chills) Weight loss/ cachexia Cough, dyspnea Mucocuatenous ulcers and papules Lymphadenopathy, hepatosplenomegaly
Dx: Pancytopenia, increased LDH and ferritin
***Urine/serum Histoplasma antigen
CXR: Reticulonodular opacities
Tx: Ampho B in hospital
After improvement, oral itraconazole is continued for 1 year for maintenance therapy
Earliest finding in macular degeneration
Distortion of straight lines to where they start to appear wavy in the affected eye
ADKPD extrarenal complications
Hepatic cysts (most common)
Valvular heart disease (mitral valve prolapse or aortic regurg.)
Colonic diverticula
Abdominal/inguinal hernia
***INTRACRANIAL BERRY ANEURYSM
HIV patient with painful swallowing and substernal burning
HIV esophagitis
Occurs when CD4 <100
Etiologies: Candida, HSV, CMV
Tx: Empiric treatment with oral fluconazole; if they do not respond, THEN GET ENDOSCOPY
Pseudotumor cerebri
Idiopathic Intracranial HTN
Patients present with a headache that is pulsatile and awakens the patient at night, transient vision loss, pulsatile tinnitus (whooshing sound in the ears) and diplopia
S/S: Papilledema, peripheral visual field defects, CN VI palsy
RFs: Overweight
Isotretinoin, tetracyclines, hypervitaminosis A
Tx: Stop medications
Weight loss
Acetazolamide for idiopathic cases
Hidradenitis suppurativa
Also known as acne inversa
Occurs in intertrigous areas and is due to a chronic inflammatory occlusion of folliculopilosebaceous units preventing keratinocytes from shedding epithelium
RFs: DM, smoking, obesity, skin friction
S/s: Painful, solitary, and inflamed nodules that can progress to abscesses that open with purulent or serosanguineous drainage
Can lead to sinus tracts, comedones, and scarring with lymphedema
Test for lactose intolerance
Lactose hydrogen breath test
-Increased breath hydrogen level after ingesting lactose =» POSITIVE
Test to always include in Hep B testing
Anti-HepBc
This is the one that is positive during the window period
Patient with sudden visual loss and S/s suspicious for GCA
Give High dose steroids
Wait for the temporal artery biopsy