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Questions and Answers
Which dietary factor can lead to an increase in blood ammonia levels?
Which class of drugs is associated with raising blood ammonia levels?
What effect do broad spectrum antibiotics have on blood ammonia levels?
Which of the following factors is least likely to influence blood ammonia levels?
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Which of these drugs is recognized for decreasing blood ammonia levels?
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What condition is associated with higher significance results?
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Which of the following is a higher significance result related to severe conditions?
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Which health issue is NOT associated with lower significance results?
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Which condition is associated with high risk and could indicate significant medical attention is needed?
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What type of medical condition could signify a higher level of health crisis?
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What is the normal range for ammonia levels in the blood?
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Which condition is primarily diagnosed using ammonia level testing?
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What does the liver convert ammonia into for excretion?
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What is the primary purpose of measuring ammonia levels in the blood?
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Which patient situation might necessitate monitoring ammonia levels?
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What can interfere with ammonia level testing?
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In what form is ammonia usually tested in the blood?
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What is one of the reasons for checking ammonia levels in a patient with liver disease?
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Study Notes
Ammonia (NH3) Blood Test
- Measures the amount of ammonia in the blood.
- Normal Range: 6-47 mcmol/L.
- Ammonia is created by the breakdown of protein.
- The liver converts ammonia into urea, which is excreted through urine.
- High levels of ammonia in the blood indicate liver dysfunction.
Indications for Ammonia Blood Test
- Diagnosing severe liver diseases, such as cirrhosis and hepatitis.
- Monitoring the success of treatment for severe liver disease.
- Checking ammonia levels in individuals receiving total parenteral nutrition.
Interfering Factors
- Smoking.
- High-protein or low-protein diets.
- Medications that increase blood ammonia levels:
- Loop diuretics
- Narcotics
- Thiazides
- Alcohol
- Medications that decrease blood ammonia levels:
- Broad-spectrum antibiotics
- Levodopa
- Potassium salts
- Strenuous exercise before the test.
Results and Significance
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Lower than normal ammonia levels:
- May suggest essential or malignant hypertension.
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Higher than normal ammonia levels:
- Liver disease (cirrhosis or hepatitis).
- Reye syndrome.
- Heart failure
- Kidney failure.
- Severe bleeding from the stomach or intestines.
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Description
This quiz covers the ammonia (NH3) blood test, including its purpose, normal ranges, and indications for testing. Learn about factors that can interfere with the results and the significance of low and high ammonia levels in the blood, especially in relation to liver health.
