Electrolyte and Osmolality Quiz -

The major anions in the body are chloride, bicarbonate, phosphate, sulfate, organic acids, and protein. This quiz will cover cations, anions, osmolal gap, sodium, potassium, calcium, Vitamin D, and ion-selective electrodes (ISEs).

Electrolytes Quiz

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1. What is the measure of the number of dissolved particles in solution expressed as osmoles per kilogram of water?

A. Osmolarity

B. Osmolality

C. Water Vapor pressure

D. Solubility

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2. What hormone increases osmolality?

A. Cortisol

B. Growth hormone

C. Renin

D. Antidiuretic hormone (ADH)

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3. Which of the following ion is an anion

A. Sodium

B. Potassium

C. Chloride

D. Magnesium

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4. What are negatively charged ions called?

A. Anions

B. Cations

C. Alkalion

D. Meta ion

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5. Which of the following ion is a cation

A. Chloride

B. Bicarbonate

C. Phosphate

D. Sodium

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6. What are positively charged ions called?

A. Anions

B. Cations

C. Alkalion

D. Meta ion

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7. What is normal osmolal gap?

A. < 15

B. 10-20

C. <10

D. 21

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8. Which ions is the major cation of intracellular fluid?

A. Sodium

B. Potassium

C. Chloride

D. Magnesium

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9. Which of the following condition will cause hyponatremia?

A. Diarrhea

B. Excessive sweating

C. Diabetes insipidus

D. Hyperaldosteronism

E. All of the above

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10. What is the normal range of sodium?

A. 149 mmol/L

B. 137 mmol/L

C. 122 mmol/L

D. 100 mmol/L

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11. Which ions is the major cation of extracellular fluid?

A. Magnesium

B. Chloride

C. Sodium

D. Potassium

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12. The serum concentration of electrolytes is quantified using

A. ion-selective electrodes (ISEs)

B. Immunoassay

C. Hexokinase method

D. Flourimetric method

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13. Which of the following electrolyte is an important buffer system of blood?

A. Sodium

B. Chloride

C. Potassium

D. Bicarbonate

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14. Which ions is the major anion of extracellular fluid?

A. Sodium

B. Chloride

C. Potassium

D. Magnesium

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15. Which analyte will be falsely elevated due to hemolysis?

A. Sodium

B. Chloride

C. Potassium

D. Magnesium

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16. In metabolic alkalosis, bicarbonate is

A. Normal

B. Decreased

C. Increased

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17. What vitamin helps regulate calcium?

A. Vitamin A

B. Vitamin E

C. Vitamin B12

D. Vitamin D

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18. What hormone helps regulate calcium?

A. Cortisol

B. Parathyroid hormone

C. Anti-diuretic hormone

D. Growth hormone

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19. Which of the following helps regulate calcium?

A. Calcitonin

B. Vitamin E

C. Cortisol

D. Growth hormone

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20. Which substance is released when serum calcium level increases?

A. Calcitonin

B. Vitamin E

C. Cortisol

D. Parathyroid hormone

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21. What hormone helps regulate Phosphorus?

A. Cortisol

B. Anti-diuretic hormone

C. Growth hormone

D. Parathyroid hormone

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22. Which of the following conditions causes Hypocalcemia?

A. Primary hyperparathyroidism

B. HypothyroidismE

C. Vitamin D deficiency

D. Vitamin E deficiency

Your score is

The average score is 57%

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the measure of the number of dissolved particles in solution expressed as osmoles per kilogram of water?

Osmolality

What is the difference between the measured and calculated osmolality called?

Osmolal gap

The serum concentration of electrolytes is quantified using

ion-selective electrodes (ISEs)

Which analyte will be falsely elevated due to hemolysis?

Potassium

What vitamin helps regulate calcium?

Vitamin D

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