FHR Reflects: - ANSWER Fetal Oxygenation
Obtaining a "category 1" or "Normal" FHR Rules Out: - ANSWER Metabolic Acidemia
Extrinsic Fetal Oxygenation Pathway Factors Include: - ANSWER 1. Maternal
oxygenation
2. Uterine Blood Flow
3. Placental Exchange
4. Umbilical Blood Flow
Intrinsic Fetal Oxygenation Pathway Factors Include: - ANSWER 1. Fetal Circulation
2. Oxygenation of Tissues
3. FHR Regulation
Well-Oxygenated Maternal Blood is Dependent Upon 2 Main Things: Also What Conditions
Could Hinder Each? - ANSWER 1. Adequate Hgb Concentration & Saturation (O2
Carrying Capacity) Problem could arise with severe maternal anemia
2. Adequate Arterial Oxygen Tension (PaO2) (Maternal Ventilation and Pulmonary Fxn)
Problem could arise with maternal asthma
Maternal Blood Flow Prior to Pregnancy and During: - ANSWER 50ml/min --> approx.
700ml/min
% of Maternal Blood Flow that Passes Through Intervillous Space - ANSWER 70-90%
1
Obtaining a "category 1" or "Normal" FHR Rules Out: - ANSWER Metabolic Acidemia
Extrinsic Fetal Oxygenation Pathway Factors Include: - ANSWER 1. Maternal
oxygenation
2. Uterine Blood Flow
3. Placental Exchange
4. Umbilical Blood Flow
Intrinsic Fetal Oxygenation Pathway Factors Include: - ANSWER 1. Fetal Circulation
2. Oxygenation of Tissues
3. FHR Regulation
Well-Oxygenated Maternal Blood is Dependent Upon 2 Main Things: Also What Conditions
Could Hinder Each? - ANSWER 1. Adequate Hgb Concentration & Saturation (O2
Carrying Capacity) Problem could arise with severe maternal anemia
2. Adequate Arterial Oxygen Tension (PaO2) (Maternal Ventilation and Pulmonary Fxn)
Problem could arise with maternal asthma
Maternal Blood Flow Prior to Pregnancy and During: - ANSWER 50ml/min --> approx.
700ml/min
% of Maternal Blood Flow that Passes Through Intervillous Space - ANSWER 70-90%
1
