Question: Question linked to image no. 9 A 64-year-old patient complains of easy fatigability after a few months of evolution and loss of appetite, although she has not observed any weight loss. We are struck by the facies that it presents when we observe it (see image). Before proceeding with the interrogation and the clinical examination, we come up with a diagnostic hypothesis. Which of the following analytical tests do you think would guide us best in our diagnostic suspicion? 
 Options:  <1> TSH <2> CK <3> Hemogram, iron, ferritin. <4> Proteinuria <5> ANA.
1