20 lines (19 with data), 645 Bytes

Q2321 12 500 5000 15-May-2020 15:35:30
Q2321.mat 16+24 1000/mV 16 0 -21 120 0 I
Q2321.mat 16+24 1000/mV 16 0 -15 31 0 II
Q2321.mat 16+24 1000/mV 16 0 6 -11 0 III
Q2321.mat 16+24 1000/mV 16 0 18 -109 0 aVR
Q2321.mat 16+24 1000/mV 16 0 -13 -72 0 aVL
Q2321.mat 16+24 1000/mV 16 0 -5 -39 0 aVF
Q2321.mat 16+24 1000/mV 16 0 11 -11 0 V1
Q2321.mat 16+24 1000/mV 16 0 -11 -53 0 V2
Q2321.mat 16+24 1000/mV 16 0 -5 35 0 V3
Q2321.mat 16+24 1000/mV 16 0 -18 36 0 V4
Q2321.mat 16+24 1000/mV 16 0 -46 -30 0 V5
Q2321.mat 16+24 1000/mV 16 0 -26 -117 0 V6
#Age: 83
#Sex: Female
#Dx: 270492004,164867002,164861001,426177001
#Rx: Unknown
#Hx: Unknown
#Sx: Unknown