Thyrotoxicosis

35-year-old woman has been suffering from shortness of breath, palpitations and tremor. Because of worsening of her health condition and anxiety, family decided to call the Emergency Medical Service. At the arrival of the paramedics, she was agited, dehydrated and sweaty with bellow displayed measurements values.
Where would you send the patient for next physical examination?
35
years
man
RR
22 /min
HR
179 /min
SpO2
97 %
BP
139/85 (103) mmHg
EKG
rythm: atrial fibrilation
action: irregular
frequency: 180 bpm
QRS: 80 ms
Glycaemia
Gly
4,8  mmol/L
Glycaemia
Take a sample