The complete question is as follows.
A nurse is discussing the role of vitamin D in calcium regulation with a nursing student. Which statement by the student indicates a need for further teaching?
A. “Adequate amounts of vitamin D occur naturally in the diet.”
B. “Vitamin D3 is preferred over vitamin D2.”
C. “Vitamin D can promote bone decalcification.”
D. “Vitamin D increases the absorption of calcium and phosphorus from the intestine.
Answer :
A. “Adequate amounts of vitamin D occur naturally in the diet.”
Explanation :
The right amount of vitamin D the body needs cannot be obtained from food.
There are two main ways to get vitamin D
1) Exposing bare skin to sunlight / Ultraviolet light.
2) Vitamin D supplements
Following are the foods that provide vitamin D :
Egg yolk
Fatty fish
Beef liver
Cheese.
Sunlight is the most important source of vitamin D. Spending more time in sunlight greatly increases vitamin D in body.
Answer:
emphysema
Explanation:
Emphysema is a condition that involves damage to the walls of the air sacs (alveoli) of the lung. Alveoli are small, thin-walled, very fragile air sacs located in clusters at the end of the bronchial tubes deep inside the lungs.
b. Breastfeeding and child-rearing techniques were followed by the hunter-gatherers for the birth spacing interval.
Explanation:
The birth spacing interval among hunter-gatherer population was simply achieved by mother’s breastfeeding pattern and child-rearing and weaning techniques without the use of any contraceptives.
Mothers breastfed their infants nearly for the first two years of infancy. The constant round-the-clock sucking of the infants during breastfeeding led to hormonal changes leading to suppression of ovulation in a lactating mother.
Among nomadic hunter-gatherer groups, women carried their infants in a pouch on their backs while the men went for hunting. So close birth spacing required the mother to carry, wean and rear both the children at one time which would cause a heavy burden for the mother. Further, the energy expenditure during pregnancy and lactation also has to be covered.
Hence, the mothers breastfed the infant for longer periods which helped them in birth spacing.
C. Narcolepsy is the answer
