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Tyler S.
Pharmacist, Experienced tutor
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Nutrition
TutorMe
Question:

How much amino acids should be given to a preterm infant to prevent protein catabolism?

Tyler S.
Answer:

1 to 1.5 kcal/kg per day along with glucose should be give to preterm infants to prevent protein catabolism

Health and Medicine
TutorMe
Question:

What is the mechanism of action of adderall?

Tyler S.
Answer:

Amphetamines are noncatecholamine, sympathomimetic amines that promote release of catecholamines (primarily dopamine and norepinephrine) from their storage sites in the presynaptic nerve terminals. A less significant mechanism may include their ability to block the reuptake of catecholamines by competitive inhibition.

Chemistry
TutorMe
Question:

Iodine-131 has a half-life of 8 days. What mass of a 40g sample of iodine-131 will remain after 24 days.

Tyler S.
Answer:

24 days = 1 half-life/8 days = 3 half-lives = 40g/8 = 5g

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