…nutrition, drugs and fluid balance. Fluid administration can dilute the creatinine and mask the deterioration, while dehydration can concentrate it. In older, malnourished, amputee or…

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