Chronic Hypervitaminosis A Symptoms

What are the early signs of chronic hypervitaminosis A?

Dry and pruritic skin

Which organ is primarily affected by chronic overdose of vitamin A?

Liver

Why should pregnant women avoid excessive vitamin A intake?

It causes congenital malformations in the developing fetus

What are good sources of preformed vitamin A?

Liver and egg yolk Signup and view all the answers

Which category of food contains carotenes, which are provitamin A sources?

Yellow, orange, and dark-green vegetables and fruits Signup and view all the answers

In what form is dietary vitamin D converted into after consumption?

$1,25$ dihydroxycholecalciferol (active form of vitamin D3) Signup and view all the answers

Which symptom is an early sign of vitamin A deficiency?

Increased visual threshold Signup and view all the answers

What is the recommended daily allowance (RDA) of vitamin A for males?

900 retinol activity equivalents (RAE) Signup and view all the answers

What does excessive intake of vitamin A lead to?

Hypervitaminosis A Signup and view all the answers

Which symptom is caused by severe vitamin A deficiency?

Irreversible loss in the number of visual cells Signup and view all the answers

What is the equivalent amount for 1 RAE?

1 μg of retinol Signup and view all the answers

What is the symptom of xerophthalmia associated with severe vitamin A deficiency?

Formation of opaque scar tissue Signup and view all the answers

Which of the following are considered fat-soluble vitamins?

Vitamin A, D, E, and K Signup and view all the answers

Which vitamin is essential for vision, reproduction, growth, and maintenance of epithelial tissues?

Vitamin A Signup and view all the answers

Which derivative of vitamin A mediates most of its actions except for vision?

Retinoic acid Signup and view all the answers

Which vitamin is stored in the liver?

Vitamin A Signup and view all the answers

Which statement is true about fat-soluble vitamins?

They are not as readily absorbed as water-soluble vitamins Signup and view all the answers

Which vitamin can be toxic in excess amounts?

Vitamin A Signup and view all the answers

Chronic Hypervitaminosis A Symptoms

Questions and Answers

What are the early signs of chronic hypervitaminosis A?

Which organ is primarily affected by chronic overdose of vitamin A?

Why should pregnant women avoid excessive vitamin A intake?

What are good sources of preformed vitamin A?

Which category of food contains carotenes, which are provitamin A sources?

In what form is dietary vitamin D converted into after consumption?

Which symptom is an early sign of vitamin A deficiency?

What is the recommended daily allowance (RDA) of vitamin A for males?

What does excessive intake of vitamin A lead to?

Which symptom is caused by severe vitamin A deficiency?

What is the equivalent amount for 1 RAE?

What is the symptom of xerophthalmia associated with severe vitamin A deficiency?

Which of the following are considered fat-soluble vitamins?

Which vitamin is essential for vision, reproduction, growth, and maintenance of epithelial tissues?

Which derivative of vitamin A mediates most of its actions except for vision?

Which vitamin is stored in the liver?

Which statement is true about fat-soluble vitamins?

Which vitamin can be toxic in excess amounts?

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