380 results
Causes of Knee Effusions - Differential Diagnosis Framework

Knee Effusion Red Flags:
1. Fever/Chills/Joint pain/Night sweats/Weight loss
	- DDX:
		-
Causes of Knee Effusions ... Diagnosis Framework Knee ... distal to the knee ... Infectious Knee ... #Effusions #causes
Drugs that Cause Fever
Most commonly:
Amphotericin B, Antihistamines, Asparaginase, Barbiturates, Bleomycin sulfate, Methyldopa, Penicillins, Phenytoin sodium, Procainamide,
Drugs that Cause ... Penicillins, Phenytoin sodium ... Nitrofurantoin sodium ... #Drug #Fever #causes
Positive Lachman test in ACL Injury

Here is an exam of a patient under anesthesia with an
looseness of the knee ... That causes the ... knee to buckle during ... Lachmans #test #ACL #Knee
Chronic prepatellar bursitis with chronic changes.

MCW EM Ultrasound @ https://twitter.com/MCW_EM_US

#Chronic #prepatellar #bursitis #POCUS #Knee #Ultrasound
prepatellar #bursitis #POCUS ... #Knee #Ultrasound
Eosinophils (Eos) and hypereosinophilia (HE)
Caused by eosinophilopoietic cytokines
Common causes:
 - Drug reaction
 - Helminth infection
 -
hypereosinophilia (HE) Caused ... cytokines Common causes ... disease Rare causes ... ) - Solid tumors ... Differential #Diagnosis #Causes
Brudzinski’s Sign in Meningitis (first described in 19th century by Dr. Josef Brudzinski)

Brudzinski's sign is characterized
flexion of the knees ... Passive neck flexion causes ... pathophysiology for the hip/knee ... is that hip and knee
Primary Adrenal Insufficiency
Addison's Disease - Damage of the adrenal glands with lack of cortisol, androgens and
aldosterone Causes ... Tuberculosis: can cause ... PRA • ↓ Serum sodium ... ACTH • ↓ Serum sodium ... tests: - Check sodium
Internal Jugular Vein Rouleaux Flow on POCUS

Amazing video of a dilated IJV showing Rouleaux flow. Whenever
Rouleaux Flow on POCUS ... significantly, it causes ... echogenic as in this case ... for underlying cause ... Jugular #IJ #Vein #POCUS
Causes of Hypernatremia - Differential Diagnosis
Inadequate water intake:
 • Lack of access to water
Extrarenal hypotonic fluid
Causes of Hypernatremia ... Differential #Diagnosis #Causes ... #nephrology #sodium
Cyanide Toxicity 
Treatment:
1) Hydroxocobalamin + Cyanide = Cyanocobalamin (nontoxic) 
   or 
2) Amyl nitrite
Amyl nitrite - causes ... binds cyanide - Sodium