Clinical Chem Practice Questions COMPLETE SOLUTIONS

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Clinical Chem Practice Questions COMPLETE SOLUTIONS in what form is glucose stored in the liver? - ✔✔glycogen which of the following hormones has the ability to decrease glucose concentration? ... -glucagon -epinephrine -insulin -thyroxine - ✔✔insulin which form of diabetes manifest itself later in life and is associated with obesity, physical inactivity, and glycosuria? - ✔✔type 2 diabetes which of the following is a characteristic of type 1 diabetes mellitus? -low insulin levels -ketosis often accompanied by hyperglycemia -high frequency of autoab to islet calles -all of the above - ✔✔all of the above which statement regarding glycosylated hgb (A1c) is true? -it has a sugar attached to the hgb-beta-chain -it is dependent on the time avg blood glucose over the rbc life -levels below 7% indicate adequate regulation for 8-12 weeks prior to sampling -all of the above - ✔✔all of the above what hormone plays a primary role in controlling the reabsorption of Na in the tubules? -cortisol -cortisone -estriol -aldosterone - ✔✔aldosterone list 3 post-analytical errors associated with chemistry specimens - ✔✔the accuracy of the results, reported results not delivered to the physician on time or having instrument malfunctions which of the following blood additives is most useful for serum collection? -polymer barrier -oxalate -EDTA -citrate - ✔✔polymer barrier (SST) which one of the following electrolytes is the major intracellular cation? -Na -K -Cl -Ca - ✔✔potassium (K) which of the following is not included in the electrolyte panel? -Na -Ca -K -Cl - ✔✔Ca electrolyte panel: Na, K, Cl, CO2 (HCO3) which of these electrolytes would be affected the most by hemolysis? -Cl -Na -K -Ca - ✔✔potassium (K) CO2 is predominately found in blood in the form of -bound CO2 -bicarbonate ions -sodium carbonate -pCO2 - ✔✔bicarbonate ions (HCO3) sodium fluoride is an excellent preservative for collecting glucose specimens because: -prevents interference with other substances -inhibits glycolysis -enhances chemical rxn -inhibits certain clotting factors - ✔✔inhibits glycolysis fluoride inhibits enolase in the glycolytic pathway which of the following is not a characteristic of severe hyperglycemia? -polyuria -ketonuria -glycosuria -hypoglucogonemia - ✔✔hypoglucogonemia??? which test maybe performed to assess the avg plasma glucose level that an individual maintained during a previous 2-3 month period? -plasma glucose -2-hr postprandial glucose -oral glucose tolerance -glyocated hgb - ✔✔glyocated hgb (A1c) lab tests are performed for a postmenopausal 57 yr old woman as part of an annual physical examination. the pt's random serum glucose is 220 mg/dL, and the A1C is 11%. Based on this information, this pt would most likely be classified as -normal -impaired -having type 1 diabetes -having type 2 diabetes - ✔✔having type 2 diabe [Show More]

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