…hypovolemia, dehydration, anemia, hyperthyroidism and myocarditis are common etiologies. Treatment of the underlying cause should resolve the sinus tachycardia. Sinus arrhythmia Sinus arrhythmia (respiratory sinus…

…kidney injury, AKI, is a syndrome of rapidly deteriorating renal function. Management is governed not by the creatinine value alone but by the course, urine…