daily MCQs test: flouride toxicity

Fluoride toxicity can have several effects on blood chemistry and overall health. Excessive intake of fluoride can lead to a condition called fluorosis, which primarily affects teeth and bones. Here are some of the effects of fluoride toxicity on blood chemistry:

**Question 1**: How does excessive fluoride intake affect blood calcium levels?

a) It increases blood calcium levels.

b) It decreases blood calcium levels.

c) It has no effect on blood calcium levels.

d) It temporarily elevates blood calcium levels, then decreases them.

**Answer**: b) It decreases blood calcium levels.

**Question 2**: What can happen to blood phosphorus levels in cases of fluoride toxicity?

a) Blood phosphorus levels increase.

b) Blood phosphorus levels decrease.

c) Blood phosphorus levels remain unaffected.

d) Blood phosphorus levels fluctuate erratically.

**Answer**: a) Blood phosphorus levels increase.

**Question 3**: How does fluoride toxicity affect kidney function?

a) It improves kidney function.

b) It has no effect on kidney function.

c) It can impair kidney function and lead to renal dysfunction.

d) It causes the kidneys to release excess fluoride.

**Answer**: c) It can impair kidney function and lead to renal dysfunction.

**Question 4**: What can be observed in blood enzyme levels due to fluoride toxicity?

a) Enzyme levels remain stable.

b) Enzyme levels decrease.

c) Enzyme levels increase.

d) There is a temporary spike in enzyme levels, followed by a decrease.

**Answer**: c) Enzyme levels increase.

**Question 5**: How might excessive fluoride intake affect blood pH levels?

a) It makes blood more alkaline.

b) It makes blood more acidic.

c) It has no effect on blood pH levels.

d) It causes blood pH levels to fluctuate randomly.

**Answer**: a) It makes blood more alkaline.

**Question 6**: What is the primary effect of fluoride toxicity on bones?

a) Strengthening of bones

b) Increase in bone density

c) Brittle and weakened bones

d) Enhanced bone mineralization

**Answer**: c) Brittle and weakened bones

**Question 7**: What is the relationship between fluoride toxicity and parathyroid hormone (PTH) levels?

a) PTH levels decrease in response to fluoride toxicity.

b) PTH levels increase in response to fluoride toxicity.

c) PTH levels remain unaffected by fluoride toxicity.

d) PTH levels fluctuate erratically due to fluoride toxicity.

**Answer**: b) PTH levels increase in response to fluoride toxicity.

**Question 8**: How might fluoride toxicity affect blood levels of certain electrolytes like sodium and potassium?

a) It leads to sodium and potassium deficiency.

b) It causes an imbalance between sodium and potassium levels.

c) It enhances the absorption of sodium and potassium.

d) It has no effect on sodium and potassium levels.

**Answer**: b) It causes an imbalance between sodium and potassium levels.

**Question 9**: How does fluoride toxicity impact blood glucose levels?

a) It decreases blood glucose levels.

b) It increases blood glucose levels.

c) It has no effect on blood glucose levels.

d) It temporarily stabilizes blood glucose levels.

**Answer**: b) It increases blood glucose levels.

**Question 10**: How can the effects of fluoride toxicity on blood chemistry be managed?

a) By increasing fluoride intake to counterbalance the effects.

b) By avoiding all dietary sources of fluoride.

c) By seeking medical advice and reducing exposure to fluoride sources.

d) By increasing consumption of foods rich in calcium and phosphorus.

**Answer**: c) By seeking medical advice and reducing exposure to fluoride sources.

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