TASK DEFINITION: In this task, you are given a multiple-choice question about healthcare. Answer the question based on your information and classify your answers into '1', '2', '3', and '4'.
PROBLEM: Question: The hydrolysis of phosphatidylinositol 4,5-bisphosphate (PIP2) by phospholipase C generates the following second messengers: 
 Options:  <1> Inositol 1,4,5-trisphosphate and triacylglycerol. <2> Inositol 1,4, 5-trisphosphate and glycerol. <3> Inositol 1,4, 5-trisphosphate and diacylglycerol. <4> Inositol 4,5-bisphosphate and diacylglycerol. <5> Inositol 4,5-bisphosphate and glycerol.

SOLUTION: 3

PROBLEM: Question: A 16-year-old boy who consulted due to pultulose tonsillitis, fever up to 38.5ºC, painful cervical adenopathies, non-pruritic macular exanthema in the thorax and mild hepatosplenomegaly, 4-5 days old. The Paul-Bunnell test and the IgM for the Epstein-Barr virus are positive. During his admission he develops a continuous fever of up to 40ºC, pancytopenia, icteric hepatitis and coagulopathy of progressive intensity. One week after admission, he was transferred to the ICU due to confusion and respiratory failure. The blood cultures and a urine culture are negative, the CSF is normal and the chest plate does not show infiltrates. Procalcitonin is normal, but PCR and ferritin are very high. From the statements below, what would be the most correct diagnostic and therapeutic approach? 
 Options:  <1> It has a bacterial sepsis of undetermined origin and should be administered ceftriaxone and supportive treatment. <2> It has a bacterial sepsis of undetermined origin and should be administered vancomycin, ceftacidime and supportive treatment. <3> It is an infectious mononucleosis of severe course and glucocorticoids must be administered. <4> It is an infectious mononucleosis of severe course and treatment with acyclovir should be started. <5> Perform a biopsy / aspirate of bone marrow and if hemophagocytosis is confirmed, start treatment with immunosuppressants.

SOLUTION: 5

PROBLEM: Question: Which statement is true in relation to the Electron Repulsion Model of the Valencia layer applied to AB n molecules: 
 Options:  <1> The AB2 molecules are always linear. <2> The AB6 molecules are always octahedral. <3> The AB3 molecules are always triangular. <4> The AB4 molecules are always tetrahedral. <5> The AB5 molecules are always trigonal bipyramidal.

SOLUTION:
2