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15 Cards in this Set
- Front
- Back
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main functions of the renal system
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1) homeostasis
2) endocrine 3) metabolic |
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homeostatic function of the renal system
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- Water and ionic metabolism, maintenance of blood pressure
- Waste products excretion, drug elimination - Acid-base equilibrium |
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endocrine function of the renal system
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- Renin
- Erythropoetin, Thrombopoetin - Calcitriol - PTH and insulin degradation |
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metabolic function of renal system
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gluconeogenesis
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features of newborn kidneys after birth
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- Lower level of glomerular filtration, low ability of urine concentration
- creatinin doesn´t respond to GF - common glucosuria, aminoaciduria - inefficient activation of vitamine D - Maturation until two years |
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when are kidneys mature
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2 years
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newborn - water metabolism
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- Big surface area – transdermal water loss
- TBW 75-80%, mostly in ECF First day after birth oliguria, next 5 days excretion of isotonic fluid – ECF reduction to 30% |
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main function of digestive tract
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1) Food intake (nutrients, vitamines, ions, water)
2) Digestion – mechanical and chemical food processing 3) Absorbtion – transport of substances via gut wall (substrates for organ build-up) 4) Transformation and nutrient storage (mainly in liver) 5) Excretion (removal of non digested parts of food and waste products) |
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when is gut mature
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Gut is fully developped after the birth
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featurs of newborn gut
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- Gut is fully developped after the birth
- The intestinal wall is not totally closed – imunisation - Insufficient enzyme secretion |
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featurs of newborn gut - metabolism
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- High needs (thermoregulation, growth)
- 2-3x bigger storage of glycogen than in adults, consumed to 12 hours after birth |
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consequence of kidney disorders - acute
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change of homeostasis (polyuria, oliguria, anuria
- Water metabolism dysbalance - Ions concentration changes - ABB dysbalance - Nutrients loss (proteins) - (proteinuria) |
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consequence of kidney disorders - chronic
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failure of endocrine and metabolic functions
- Anemia, thrombocytopenia - Immune problems - Changes of hormonal secretion and function - Impairment of bone growth, renal osteopathy - Total growth slowing - Failure to thrive - Hemocoagulation changes |
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newborn
1) HR 2) S-BP 3) D-BP 4) cardiac output 5) circulatory volume 6) hemoglobin |
1) HR: 120-160/min
2) S-BP: 60 mmHg 3) D-BP: 35 mmHg 4) cardiac output: 200 ml/kg/min 5) circulatory volume: 90 ml/kg 6) hemoglobin: 16-18 ml/kg |
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2-years-old child
1) HR 2) S-BP 3) D-BP 4) cardiac output 5) circulatory volume 6) hemoglobin |
1) 75-115/min
2) 95 mmHg 3) 35 mmHg 4) 90 ml/kg 5) 16-18 ml/kg |
