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'.
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Question: Question: Protein kinase A (PKA): 
 Options:  <1> It induces the synthesis of glycogen in response to an increase in glucagon in the blood. <2> It is a membrane protein that is activated in response to an increase in circulating GTP. <3> It is activated through the cAMP produced in response to an increase in adrenaline in the circulation. <4> It inhibits the lipolysis of triacylglycerides accumulated in adipose tissue, in response to an increase in intracellular cAMP. <5> It is a monomeric protein that inhibits the synthesis of ATP and muscle contraction.

Answer: 3


Question: Question: The determination of cyanide by the Liebig method is based on the addition of a silver nitrate standard solution: 
 Options:  <1> Until complete precipitation of silver cyanide. <2> Until the precipitation of silver cyanide begins. <3> Until the appearance of a red precipitate of silver chromate. <4> Until the AgCN complex is quantitatively formed. <5> Until the precipitation of silver iodide, yellow.

Answer: 2


Question: Question: A patient diagnosed with chronic renal failure has tingling and paresthesias in the legs. This is due to: 
 Options:  <1> Vascular alterations produced by hyperlipidemia. <2> Peripheral neuropathy associated with uremia. <3> Hyperphosphatemia secondary to renal osteodystrophy. <4> Decreased peripheral perfusion as a result of anemia. <5> Hypercalcemia produced by decreased glomerular filtration.

Answer:
2