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КРОК / KROK
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A 71-year-old woman with cholecystitis has developed mechanical jaundice. What type of arrhythmia will develop in this case?
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In the qualitative analysis which involves precipitation of sulphates of the third analytical group cations (Ca^2+, Sr^2+, Ba^2+) the solubility of sulphates can be reduced by adding:
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Reaction of sodium ions with potassium hexahydroxoantimonate (V) in neutral medium produces precipitate. Specify the color of this precipitate:
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A doctor prescribed metoprolol to a patient, which helped to lower the patient's blood pressure. This drug belongs to the following pharmacological group:
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What reagent allows to simultaneously detect aldehyde group and glycol fragment presence in glucose molecule?
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A stool sample obtained from a patient with suspected shigellosis was inoculated on the Ploskirev nutrient medium. What will be the color of the colonies of the dysentery pathogen in this medium?
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Trypsin is a proteolytic enzyme used to clean purulent wounds. Combined with water, it causes the breakdown of complex organic compounds (proteins, peptides) into simpler ones. According to the modern international Nomenclature and Classification of Enzymes, trypsin belongs to:
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Iodimetry involves use of standard solutions of iodine and Na_2S_2O_3. What substance is used to standardize the sodium thiosulfate solution?
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Most antidepressants are nonselective monoamine oxidase inhibitors (MAOIs) --- they inhibit flavin-containing enzymes that catalyze oxidative deamination of monoamines in the mitochondria of brain neurons. Name the coenzyme of MAO:
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A pharmacy produces eye drops and dispenses them into sterile vials. What method should be used to sterilize the vials?
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