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Exam (elaborations)

MLT Chemistry Quiz Questions with Correct Answers

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  • MLT Chemistry
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  • MLT Chemistry

MLT Chemistry Quiz Questions with Correct Answers A decrease in blood volume triggers what system? - Answer-Renin-Angiotensin-Aldosterone System What are the 2 forms of Calcium? - Answer-Ionized (Active) and Protein Bound Why must Calcium specimens be collected anaerobically? - Answer-los...

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  • September 6, 2024
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MLT Chemistry Quiz Questions
with Correct Answers
A decrease in blood volume triggers what system? - Answer-Renin-Angiotensin-
Aldosterone System

What are the 2 forms of Calcium? - Answer-Ionized (Active) and Protein Bound

Why must Calcium specimens be collected anaerobically? - Answer-loss of CO2 will
decrease pH and H+ ions compete with Ca ++ for albumin binding sites

How does PTH increase serum calcium levels? - Answer-Stimulates kidneys to
reabsorb Calcium ions

Does random error indicate imprecision or inaccuracy? - Answer-imprecision- changes
standard deviation

Does systemic error indicate imprecision or inaccuracy? - Answer-inaccuracy- changes
the mean

Low false NEGATIVES: Diagnostic Sensitivity or Specificity? - Answer-Diagnostic
Sensitivity

Low false POSITIVES : Diagnostic Sensitivity or Specificity? - Answer-Diagnostic
Specificity

What is Positive Predictive Value? - Answer-Probability that a "positive" result is a "true
positive"

What is Negative Predictive Value? - Answer-Probability that a "negative" result is a
"true negative"

What is parallel testing? - Answer-Obtain new lot of control. The recommendation is to
run the control material as a patient at least 20 times over 20 days "in parallel" with the
current control material

What are the percentages for the SD values in a normal gaussian distribution? -
Answer-+1 SD = 68% of all points; + 2 SD = 95% of all points; + 3SD = 99.7% of all
points

What are the chances of QC being out due to random variation? - Answer-1 in 20 (5 out
of 100)

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