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Questions and Answers
What is a common use of mercury in dental practice?
What is a common use of mercury in dental practice?
- As dental fillings (correct)
- As a component in cosmetics
- As a therapeutic medication
- For making contact lenses
Where does the mercuric cation concentrate mostly after absorption?
Where does the mercuric cation concentrate mostly after absorption?
- Liver
- Kidney (correct)
- Bone marrow
- Blood
What is a common symptom of acute mercury poisoning?
What is a common symptom of acute mercury poisoning?
- Vomiting and diarrhea (correct)
- Respiratory distress
- Muscle weakness
- Rapid heartbeat
What is the excretory route for mercury after absorption?
What is the excretory route for mercury after absorption?
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What is used as a treatment for acute mercury poisoning?
What is used as a treatment for acute mercury poisoning?
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Study Notes
Mercury in Dental Practice
- Amalgam fillings in teeth contain mercury
- Mercury is used in dental fillings due to its ability to bind with other metals, creating a strong and durable filling
Mercury Absorption and Concentration
- After absorption, the mercuric cation (Hg²⁺) concentrates mostly in the kidneys
- The kidneys filter the mercuric cation from the blood, causing it to accumulate in this organ
Symptoms of Acute Mercury Poisoning
- A common symptom of acute mercury poisoning is kidney damage
- Other symptoms may include tremors, skin rashes, and emotional disturbances
Excretion of Mercury
- Mercury is primarily excreted through the kidneys and eliminated in the urine
- Additionally, some mercury is excreted in feces and sweat
Treatment for Acute Mercury Poisoning
- Chelation therapy is used to treat acute mercury poisoning
- Chelating agents, such as dimercaprol, are administered to bind with mercury and facilitate its excretion from the body
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