Term
| What happens to maternal FRC? |
|
Definition
|
|
Term
| What happens to maternal TLC, VC, and IC? |
|
Definition
| They don't change due to compensatory increases in thoracic A-P diameter |
|
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Term
| How much does O2 consumption increase by in the pregnant patient? Tidal volume? Respiratory rate? |
|
Definition
|
|
Term
| What does hypocarbia do to uterine blood flow? |
|
Definition
|
|
Term
| How is a pregnant ABG different? |
|
Definition
| pH about 7.45, low CO2, low HCO3 to compensate |
|
|
Term
| How does pregnancy affect MAC? |
|
Definition
|
|
Term
| Is pregnant inhalational induction faster or slower? |
|
Definition
| Faster--due to decreased FRC and increased ventilation |
|
|
Term
| What happens to maternal cardiac output? Maternal BP? |
|
Definition
| CO increases, BP drops due to a decrease in SVR |
|
|
Term
| When is cardiac output the highest during pregnancy? |
|
Definition
| Immediately after delivery of the baby (stage 3) |
|
|
Term
| What happens to maternal BUN/Creatinine? |
|
Definition
| Lowers due to an increase in GFR/renal blood flow |
|
|
Term
| What vertebral levels are responsible for Stage 1 pain? |
|
Definition
|
|
Term
| What vertebral levels are responsible for second stage labor pain? |
|
Definition
|
|
Term
| Why are NSAIDS generally not used in OB? |
|
Definition
| It suppresses uterine contractions and can cause premature closure of the ductus arteriosis |
|
|
Term
| What is the overall incidence and mortality of placenta previa? |
|
Definition
|
|
Term
| What is the classic sign indicating placenta previa? |
|
Definition
| Bright red painless bleeding---first episode is usually preterm |
|
|
Term
| What is the classic presentation of placental abruption? |
|
Definition
|
|
Term
| What is abruptio placenta associated with? |
|
Definition
| Cocaine, tobacco, old age |
|
|
Term
| What is placental abruption? |
|
Definition
| Separation of the placenta from the deciduas basalis before delivery of the fetus |
|
|
Term
| What is the fetal mortality rate for amniotic fluid embolism? |
|
Definition
|
|
Term
| Describe the following lab values for a patient in DIC: Fibrinogen, platelets, PT, PTT, fibrin split products |
|
Definition
Fibrinogen <150
Platelets <50
PT/PTT >100 seconds
Fibrin split products >200 |
|
|
Term
| What are some of the beneficial effects of Mag in pre-eclampsia? |
|
Definition
| Anticonvulsant, vasodilator, increased uterine blood flow, tocolytic |
|
|
Term
| What are some of the negative effects of Mag? |
|
Definition
| Muscle weakness, prolonged muscle block |
|
|
Term
| What are early decels? What is another name for them? |
|
Definition
| Early decels are decels that mirror uterine contractions--due to head compression, normal---AKA Type I |
|
|
Term
| What are late decels? Whats the etiology? Whats another name? |
|
Definition
| Type II decels, caused by uteroplacental insufficiency (not normal)--they follow uterine contractions by about 10-30 seconds |
|
|
Term
| What are variable decels? What causes them? |
|
Definition
| Random decels usually caused by cord compression |
|
|
Term
| What is the therapeutic range of Mag in OB? |
|
Definition
|
|
Term
| What is normal plasma fibrinogen level during pregnancy? |
|
Definition
|
|
Term
| How much does plasma volume increase during pregnancy? Blood volume? |
|
Definition
| Plasma increases 40-50% while BV only increases 25-40% |
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