Nitrogen balance is
the difference between the amount of nitrogen consumed per day and the amount of nitrogen excreted per day
. This definition can be expressed by the formula. Nitrogen balance = ( grams of nitrogen eaten − grams of nitrogen lost )
What does the term nitrogen balance mean quizlet?
Nitrogen balance ) it is
the quantitative difference between the amount of nitrogen intake and the amount of nitrogen excreted
.
What is meant by nitrogen balance?
The concept of nitrogen balance is that
the difference between nitrogen intake and loss reflects gain or loss of total body protein
. If more nitrogen (protein) is given to the patient than lost, the patient is considered to be anabolic or “in positive nitrogen balance”.
How does nitrogen balance work?
Nitrogen balance is a measure of protein metabolism. That may sound complicated, but it simply means that if the intake of nitrogen into your body is greater than the loss of nitrogen from your body,
there is an increase in the total body pool of protein
.
How do you interpret nitrogen balance?
- Determine nitrogen lost in urine by a 24 hour urinary urea nitrogen test.
- Add 4* to the UUN to account for non-urinary losses of nitrogen.
- Determine nitrogen intake by dividing the daily protein intake by 6.25.
- N-bal.= value from #3 – value from #4.
What is nitrogen balance and why is it important?
Positive nitrogen balance is necessary
to create an anabolic environment
, allowing the body to build new muscle and helping to recover from strenuous exercise and activity. Nitrogen equilibrium is when the body maintains the same amount of protein in its tissues daily (input = output).
Which of the following is an example of positive nitrogen balance?
Positive nitrogen balance is associated with periods of
growth, hypothyroidism, tissue repair
, and pregnancy. This means that the intake of nitrogen into the body is greater than the loss of nitrogen from the body, so there is an increase in the total body pool of protein.
Is nitrogen good for the human body?
Nitrogen is one of the main body components, required for
protein synthesis and production of
several nitrogenous compounds such as hormones, neurotransmitters, and components of antioxidant defense.
Who is most likely to have a positive nitrogen balance?
Positive nitrogen balance:
growing infants, children, adolescents, pregnant women
, and people recovering from protein deficiency or illness.
What are the factors affecting nitrogen balance?
Insufficient caloric intake, lack of non-essential nitrogen, potassium depletion, corticosteroid administration, infection or cardiac insufficiency
have been found to cause a deterioration of the nitrogen balance and an increase of plasma urea or concentration.
Why is negative nitrogen balance bad?
Amino Acids and Nitrogen Compounds
Starving, immobilized, and severely ill people, in contrast,
break down tissue protein and lose more nitrogen than they take in
; they are said to be in negative nitrogen balance.
What is the cause of negative nitrogen balance?
A negative nitrogen balance may occur during physical or emotional stress,
starvation
, when an individual is on a very low calorie diet, or when the quality of protein is poor (e.g. when the diet is lacking essential amino acids).
How much protein is needed for positive nitrogen balance?
PROTEIN INTAKES FOR POSITIVE NITROGEN BALANCE
Currently the guidelines for exercising individuals are based on information in a paper by Lemon (1996). Recommendations for those who engage in regular endurance exercise are
1.2-1.4 g protein/kg body mass/d
and for strength exercisers, 1.7-1.8 g protein/kg body mass/d.
How do I know if my nitrogen balance is positive?
Doctors can then analyze nitrogen from body output including urine, feces, sweat, skin, and hair.
When nitrogen intake is higher than nitrogen output
, you are in a positive nitrogen balance.
What is the nitrogen balance formula?
Calculation of nitrogen balance
Nitrogen Balance = Protein intake/6.25- (UN + 4*) *
For average loss via sweat and feces.
Which of the following states of nitrogen balance is a pregnant woman typically in?
| Question Answer | what molecule is a protein that provides structural support to body tissues? collagen | what state of nitrogen balance is a pregnant woman typically in? positive nitrogen balance | the average adult should consume how many grams o protein for each kilogram of body weight? 0.8 |
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