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16 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Amniotic fluid
Definition |
Fluid in the membranous sac surrounding the fetus |
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Amniotic fluid
Functions |
Cushioning Protection Lung development Water and chemical exchanges
Notes |
Cushions the fetus and allows for movement
Protects the fetus from extreme temperature change
Allows for proper lung development
Water, chemical exchanges between the fetus and maternal circulation |
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Reasons for analysis of amniotic fluid |
Genetic analysis Neural tube defect markers, example
Determination of HDN, full name?
Determination of fetal lung maturity |
Neural tube defect: AFP
Hemolytic disease of the newborn |
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Tests performed on amniotic fluid that help determine fetal maturity |
L/S ratio Presence of phosphatidyl glycerol
What is the biggest risk to the premature infant? |
Respiratory distress syndrome |
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Tests performed on amniotic fluid that help determine fetal maturity
__________ Presence of phosphatidyl glycerol |
L/S ratio Lecithin-sphingomyelin
Result: ensure a safe delivery |
Over 2.0 |
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Tests performed on amniotic fluid that help determine fetal maturity
L/S ratio ______________ |
Presence of phosphatidyl glycerol
This analyte is delayed in? |
Diabetic mothers |
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Fecal analysis
Causes of secretory diarrhea |
Increased production of water and electrolytes
as a result of? |
Infection Drugs Hormones Inflammatory bowel diseases Endocrine disorders neoplams Collagen vascular diseases |
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Causes of osmotic diarrhea |
Maldigestion malabsorption
as a result of? |
Celiac disease Lactose intolerance Magnesium antacids Amebiasis Antibiotics |
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Steatorrhea
Definition |
+ fat in the stool |
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Steatorrhea
Causes of this condition |
-/0 of bile salts and pancreatic enzymes
Notes |
Absence of bile salts and/or decreased pancreatic enzymes impede lipid breakdown and reabsorption of triglycerides |
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Steatorrhea
Notes: diseases |
CF Pancreatitis Malabsorption, notes Maldigestion, notes Malignancy |
Malabsorption: impaired absopriton of nutrients
Maldigestion: impaired digestion of food |
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Guiac test
aka |
Fecal occult blood |
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Fetal occult blood test
Principle |
Pseudoperoxidase activity of hemoglobin
Formula |
Hemoglobin+ hydrogen peroxide + guaiac is converted to Oxidized guaiac+ H20
by pseudoperoxidase |
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Fetal occult blood test
Significance of a positive test |
>2.5 ml of blood
Notes: false positive |
Asprin and anti-inflammation medications
Red meat Horseradish Raw brooli, cauliflower, radishes,
Melons Menstraul and hemorrhoid contamination |
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Occult blood test
False-negative Notes |
Vitamin C Iron supplements containing vitamin C |
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Fetal occult blood test vs. urianalysis |
Fetal occult blood test is less sensitive
Notes |
Guaiac is less sensitive than urianlaysis reagent b/c up to 2.5 ml of blood in stool in normal. |
