Dilutions 1) In a 1 to 10 dilution, how many parts of diluent are needed? 2)...

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Dilutions 1) In a 1 to 10 dilution, how many parts of diluent are needed? 2) In a 1 to 3 dilution, how many parts of diluent are needed? 3) In a 1 to 5 dilution, what is the ratio of solute to solvent? 4) If 10mL of sample are added to 190 mL of diluent, what is the dilution factor? 5) In a 1 to 2 dilution, what is the dilution factor? 6) In a 1 to 16 dilution, what is the dilution factor? 7) A 1/10 dilution is to be performed on a sample: 50 uL of serum is available for the dilution, but the MLT cannot use all of it as a repeat analysis may be necessary. How should the dilution be performed? Your pipette can obtain a minimum of 10uL of sample and at least 25uL of sample are needed to run a sample. 8) A serum lipase is diluted 1/100 with a result of 67.0 U/L. What is the patient's actual lipase result? 9) A serum sample is outside of the linear range of the analyzer for an analyte. A 1 to 5 ratio of serum to diluent is performed and the sample reanalyzed. What "factor" would the MLT need to multiple the result of the diluted sample by to obtain the correct concentration of the analyte? 10) In a dilution series, 20ul of serum and 80uL of diluent are added and mixed in Tube 1. From tube 1, 10uL are taken and placed into 40uL of diluent in tube 2. What is the final dilution in tube 2? 11) If a serial dilution is performed, and the final concentration of the sample is 0.433 mg/dL with a dilution factor of 1500, what is the original concentration? 12) A patients total protein result is out of range for the analyzer you are working on. You must perform a 1:2 dilution. When you test the diluted sample you obtain a value of 5.6 g/dL. a) draw out the dilution scheme b) what is the final answer you would report? 9) A serum sample is outside of the linear range of the analyzer for an analyte. A 1 to 5 ratio of serum to diluent is performed and the sample reanalyzed. What "factor" would the MLT need to multiple the result of the diluted sample by to obtain the correct concentration of the analyte? 10) In a dilution series, 20uL of serum and 80uL of diluent are added and mixed in Tube 1. From tube 1, 10uL are taken and placed into 40uL of diluent in tube 2. What is the final dilution in tube 2? 11) If a serial dilution is performed, and the final concentration of the sample is 0.433 mg/dL with a dilution factor of 1500, what is the original concentration? 12) A patients total protein result is out of range for the analyzer you are working on. You must perform a 1:2 dilution. When you test the diluted sample you obtain a value of 5.6 g/dL. a) draw out the dilution scheme b) what is the final answer you would report? 13) Draw out the following dilution schemes and calculate the final dilution and dilution factor: a) 1:2, 1:2, 1:2 b) 1:10, 1:3 c) 1:10, 1:2, 1:5 14) You perform a sodium test on a 24-hour urine. The result is above the linearity of your analyzer. You perform a 1:2 dilution and the result is still above the linearity of your analyzer. You perform a 1:5 dilution and obtain a sult of 75 mEq/L. What is the result of the original, undiluted sample? 15) You perform a glucose test on a patient's serum sample. The result is above the linearity of your instrument. You perform a 1:2 dilution and obtain a result of 65 mg/dL. What is the concentration of the original, undiluted specimen in g/dL? Solutions 1) How are 100mL of a 30.0 % (w/v) solution of MgSO4 prepared? 2) How many grams of NaOH are needed for a 10% (w/v) solution? 3) How many grams of CaCl2 are needed to prepare 100mL of a 15.0% (w/v) solution using deionized water as the solvent? 4) How many grams of KCl are actually present in 5.00 mL of a 20.0% (w/v) solution of KCI? Dilutions 1) In a 1 to 10 dilution, how many parts of diluent are needed? 2) In a 1 to 3 dilution, how many parts of diluent are needed? 3) In a 1 to 5 dilution, what is the ratio of solute to solvent? 4) If 10mL of sample are added to 190 mL of diluent, what is the dilution factor? 5) In a 1 to 2 dilution, what is the dilution factor? 6) In a 1 to 16 dilution, what is the dilution factor? 7) A 1/10 dilution is to be performed on a sample: 50 uL of serum is available for the dilution, but the MLT cannot use all of it as a repeat analysis may be necessary. How should the dilution be performed? Your pipette can obtain a minimum of 10uL of sample and at least 25uL of sample are needed to run a sample. 8) A serum lipase is diluted 1/100 with a result of 67.0 U/L. What is the patient's actual lipase result? 9) A serum sample is outside of the linear range of the analyzer for an analyte. A 1 to 5 ratio of serum to diluent is performed and the sample reanalyzed. What "factor" would the MLT need to multiple the result of the diluted sample by to obtain the correct concentration of the analyte? 10) In a dilution series, 20ul of serum and 80uL of diluent are added and mixed in Tube 1. From tube 1, 10uL are taken and placed into 40uL of diluent in tube 2. What is the final dilution in tube 2? 11) If a serial dilution is performed, and the final concentration of the sample is 0.433 mg/dL with a dilution factor of 1500, what is the original concentration? 12) A patients total protein result is out of range for the analyzer you are working on. You must perform a 1:2 dilution. When you test the diluted sample you obtain a value of 5.6 g/dL. a) draw out the dilution scheme b) what is the final answer you would report? 9) A serum sample is outside of the linear range of the analyzer for an analyte. A 1 to 5 ratio of serum to diluent is performed and the sample reanalyzed. What "factor" would the MLT need to multiple the result of the diluted sample by to obtain the correct concentration of the analyte? 10) In a dilution series, 20uL of serum and 80uL of diluent are added and mixed in Tube 1. From tube 1, 10uL are taken and placed into 40uL of diluent in tube 2. What is the final dilution in tube 2? 11) If a serial dilution is performed, and the final concentration of the sample is 0.433 mg/dL with a dilution factor of 1500, what is the original concentration? 12) A patients total protein result is out of range for the analyzer you are working on. You must perform a 1:2 dilution. When you test the diluted sample you obtain a value of 5.6 g/dL. a) draw out the dilution scheme b) what is the final answer you would report? 13) Draw out the following dilution schemes and calculate the final dilution and dilution factor: a) 1:2, 1:2, 1:2 b) 1:10, 1:3 c) 1:10, 1:2, 1:5 14) You perform a sodium test on a 24-hour urine. The result is above the linearity of your analyzer. You perform a 1:2 dilution and the result is still above the linearity of your analyzer. You perform a 1:5 dilution and obtain a sult of 75 mEq/L. What is the result of the original, undiluted sample? 15) You perform a glucose test on a patient's serum sample. The result is above the linearity of your instrument. You perform a 1:2 dilution and obtain a result of 65 mg/dL. What is the concentration of the original, undiluted specimen in g/dL? Solutions 1) How are 100mL of a 30.0 % (w/v) solution of MgSO4 prepared? 2) How many grams of NaOH are needed for a 10% (w/v) solution? 3) How many grams of CaCl2 are needed to prepare 100mL of a 15.0% (w/v) solution using deionized water as the solvent? 4) How many grams of KCl are actually present in 5.00 mL of a 20.0% (w/v) solution of KCI?

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Answer In a 1 to 10 dilution you need 1 part of solute the substance you ... View the full answer