Mac 11: P Flashcards

1
Q

It is the optically clear container used in spectrophotometer

  • Photometer
  • Cuvette
  • Wavelength
  • Monochromator
A

-Cuvette

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2
Q

Which of the following CANNOT cause an increase in urinary creatinine levels?

  • Low Muscle Mass
  • Muscular Exercise
A

-Low Muscle Mass

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3
Q

What is the format of the linear equation formula?

A

-y=mx+b

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4
Q

What are normal blood creatinine levels particularly in adult male?

  • 0.74 to 1.35 mg per dL
  • 0.6 to 1.2 mg per dL
  • 0.83 to 1.9 mg per dL
  • 0.4 to 1.0 mg per dL
A

-0.6 to 1.2 mg per dL

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5
Q

It is a normal waste product that the body produces every day during muscle movements and when digesting meat.

  • Ketones
  • Proteins
  • Glucose
  • Creatinine
A

-Creatinine

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6
Q

To get the true absorbance value, we__.

  • Subtract the reading of the blank from the observed absorbance of the blank, standard and unknown sample
  • We directly use the absorbance reading from the spectrophotometer regardless of the reading of blank solution
A

-Subtract the reading of the blank from the observed absorbance of the blank, standard and unknown sample

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7
Q

True or False
The principle behind the Jaffe’s Method is that the creatinine reacts with picrate ions formed in alkaline medium to develop a purple-colored complex.

A

-False (Red-Orange Color)

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8
Q

True or False

Beer’s law, in spectroscopy, a relation concerning the absorption of radiant energy by an absorbing medium.

A

-True

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9
Q

True or False
The number of mg creatinine excreted daily per kg body weight is known as the creatinine coefficient.
The normal range is 15-25

A

-False (19-30)

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10
Q

True or False
In the analysis of urinary creatinine, the standard solution with higher concentration developed darker color after 15 mins.

A

-True

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11
Q

What is determined by this formula:
??? = mg creatinine per ml urine X estimated volume of 24 hr urine sample / weight of patient in kg

  • Creatinine Levels
  • Creatinine Clearance
  • Creatinine Coefficient
  • Creatine Content
A

-Creatinine Coefficient

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12
Q

What are normal blood creatinine levels particularly in adult female?

  • 0.74 to 1.35 mg per dL
  • 0.6 to 1.2 mg per dL
  • 0.83 to 1.9 mg per dL
  • 0.4 to 1.0 mg per dL
A

-0.5 to 1.1 mg per dL

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13
Q

According to Beer’s Law, there is _____ relationship between the concentration of a substance and its absorbance

  • Linear
  • Parallel
  • Directly Proportional
  • Non linear
A

-Linear

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14
Q

True or False

A UV-VIS Spectrophotometer uses light over the range of 700 - 15000 nm of electromagnetic radiation spectrum

A

-False (IR Spectrophotometer)

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15
Q

True or False

Creatinine coefficient is the amount of creatinine in grams per kg body weight over a 12hr period.

A

-False (24hr period)

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16
Q

When plotting the absorbance and concentration in excel, we plot:

  • Y-axis= concentration ; X-axis= absorbance
  • Y-axis= absorbance ; X-axis= concentration
A

-Y-axis= absorbance ; X-axis= concentration

17
Q

What concept is represented by this formula:

  • Michaelis-Menten
  • Beer’s Law
  • Mendel’s Law
  • Lineweaver-Burk Plot
A

-Beer’s Law