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Medicine (Expanded)
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Obstetrics

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Medicine (Expanded) | Paramedic School Study Aid

Obstetrics
38 Picmonics to Learn | 1 hr 20 mins
Ovulatory Hormones I - Follicular Phase
Characteristics
0-14 Days
GnRH Stimulates FSH and LH
Follicle Secretes Estrogen
Negative Feedback from Estrogen
Increased Estrogen Leads to Positive Feedback
FSH and LH Surge
LH Spike Leads to Ovulation
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2 mins
Ovulatory Hormones II - Luteal Phase
Days 15-28
Corpus Luteum
Secretes Progesterone
Negative Feedback inhibits FSH and LH
No pregnancy forms Corpus Albicans
Stops Estrogen Secretion
Endometrial Sloughing - Menses
GnRH secretion produces new follicular phase
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2 mins
Placental Implantation Abnormalities
Mechanism
Placenta Adheres Directly to Myometrium
Placenta Accreta
Placenta Increta
Placenta Percreta
Caused by Scar Tissue
Hemorrhage
Diagnosis
Ultrasound is First-line, then MRI
Treatment
C-section Delivery
Artery Ligation or Embolization
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2 mins
Abruptio Placentae
Mechanism
Premature Separation of Placenta
Assessment
Tearing Pain
Bleeding (Often Concealed)
Rigid Uterus
Contractions
Interventions
Corticosteroids as Needed
Emergent Delivery
Considerations
Increased Risks for Neonate
Rh (Rhesus) Incompatibilities
Increased Risk for Shock
Monitor Fetal Heart Rate
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3 mins
Placenta Previa
Mechanism
Placenta Covers Cervical Os
Assessment
Painless
Bright Red Vaginal Bleeding
Interventions
Stable Fetus
Bed Rest
Observation
Unstable Fetus
C-section Delivery
Considerations
Risk for Shock
Magnesium Sulfate
Tocolysis
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3 mins
Prenatal Nutrition
Prenatal Vitamins
Iron Supplement 30 mg Daily
Folate/Folic Acid 400 mcg Daily
Appropriate Weight Gain Recommendations
340 Calorie Increase
25 gram Protein Increase
Foods and Substances to Avoid
Coffee, Alcohol, Tobacco
Fish Containing High Mercury Levels
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3 mins
Prenatal Care
Prenatal Visits
Vital Signs, FHR
Fundal Height
Urine Dipstick
Weight
Prenatal Screening
Laboratory Testing
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2 mins
Ectopic Pregnancy
Signs and Symptoms
Lower Abdominal Pain
Delayed Menses
Abnormal Vaginal Bleeding
Shock
Referred Shoulder Pain
Cullen Sign
Considerations
Methotrexate
Surgery
RhoGAM
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2 mins
Hyperemesis Gravidarum
Signs and Symptoms
Excessive Vomiting
Significant Weight Loss
Dehydration
Hypotension
Electrolyte Imbalance
Interventions
Antiemetics
Frequent Small Meals
IV Therapy
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2 mins
Discomforts of Pregnancy - First Trimester
Breast Tenderness
Supportive Bra
Nausea and Vomiting
Frequent Small Meals
Urinary Frequency and Urgency
Frequently Empty Bladder
Leukorrhea
Perineal Pad
Ptyalism
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2 mins
Discomforts of Pregnancy - Second Trimester
Supine Hypotension
Side-lying Position
Food Cravings
Heartburn (Pyrosis)
Constipation
Moderate Exercise
Varicose Veins
Elevate Legs
Backache
Pelvic Tilt Exercise
Considerations
Nutrition
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2 mins
Discomforts of Pregnancy - Third Trimester
Shortness of Breath (SOB)
Rest Periods
Return of Urinary Frequency and Urgency
Empty Bladder Regularly
Leg Cramps
Stretching Exercises
Ankle Edema
Elevate Legs
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2 mins
Presumptive Signs of Pregnancy
Amenorrhea
Fatigue
Urinary Frequency
Nausea and Vomiting
Breast Changes
Quickening
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1 min
Probable Signs of Pregnancy
Goodell Sign
Chadwick Sign
Hegar Sign
Positive Serum and Urine Sample
Braxton Hicks Contractions
Ballottement
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2 mins
Positive Signs of Pregnancy
Fetus on Ultrasound
Fetal Heart Rate by Doppler or Fetoscope
Fetal X-ray
Fetal Movements
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1 min
Supine Hypotension (Vena Cava Syndrome)
Mechanism
Compression of the Vena Cava and Descending Aorta
Signs and Symptoms
Hypotension
Dizziness
Tachycardia
Decreased Renal Perfusion
Decreased Uteroplacental Perfusion
Intervention
Side-lying Position
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2 mins
Amniocentesis
Mechanism
Transabdominal Puncture
> 14 weeks gestation
Indications
Genetic and Congenital Anomalies
Fetal Hemolytic Disease
Fetal Lung Maturity
Complications
Miscarriage
Hemorrhage
Infection
Considerations
RhoGAM (Rh Immune Globulin)
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2 mins
Fetal Macrosomia
Pathophysiology
Increased Birth Weight
> 4500 g
Causes
Maternal Obesity
Gestational Diabetes
Diagnosis
Weigh Newborn at Birth
Ultrasound
Hadlock's Formula
Complications
Birth Canal Trauma
Neonatal Hypoglycemia
Shoulder Dystocia
Treatment
Planned Cesarean Section
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2 mins
Gestational Diabetes
Signs and Symptoms
Usually Asymptomatic
Fetal Macrosomia
Polyhydramnios
Diagnosis
Glucose Intolerance After 24 Weeks Gestation
3-hr 100g Glucose Tolerance Test
Treatment
Diet and Exercise
Close Glucose Monitoring
Insulin
Ultrasound (or Nonstress Test (NST))
Delivery
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2 mins
Gestational Hypertension
New-Onset Hypertension
> 20 Weeks Gestation
Risk Factors
Nulliparity
Obesity
African American Females
> 35 years Old
Multiple Gestations
Family History of Gestational HTN (or Preeclampsia)
Complications
IUGR
Prematurity
Abruptio Placentae
Management
Fetal Monitoring
Alpha-Methyldopa
Beta-Blockers (Labetalol)
Calcium Channel Blockers
Hydralazine
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4 mins
Preeclampsia Assessment
After 20 Weeks of Pregnancy
Mild
Hypertension > 140/90
Proteinuria or End-Organ Dysfunction
Severe
Hypertension > 160/110
Progressive Renal Insufficiency
Vision Changes
HELLP Syndrome
Pulmonary Edema
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2 mins
Preeclampsia Interventions
Side Lying Position and Bedrest
Antihypertensives
Magnesium Sulfate
Labor Induction
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1 min
Severe Preeclampsia
Mechanism of Action
Vasospasm and Decreased Organ Perfusion
Intravascular Coagulation
Increased Permeability and Capillary Leakage
Signs and Symptoms
Hypertension
Proteinuria or End-Organ Dysfunction
HELLP Syndrome
Hepatic Dysfunction and Hemolysis
Elevated Liver Enzymes
Low Platelet Counts
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3 mins
Spontaneous Abortion Overview
Assessment
Bleeding < 20 weeks Gestation
Interventions
Identify Type
Bed Rest
Monitor for Hemorrhage
Save Pads and Linens
RhoGAM
Dilation and Curettage (DandC)
Cerclage
Emotional Support
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2 mins
Spontaneous Abortion Types
Missed Abortion
No Fetal Heartbeat, No Cervical Dilation, No Bleeding
Threatened Abortion
No Cervical Dilation and Minimal Bleeding
Inevitable Abortion
Bleeding and Cervical Dilation with No Loss of Products of Conception
Incomplete Abortion
Bleeding and Cervical Dilation with Loss of Some Products of Conception
Complete Abortion
Bleeding with No Cervical Dilation, with Loss of All Products of Conception
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2 mins
Pregnant Diabetic Patient Interventions
First Trimester
Increase Insulin then Decrease
Metformin
Nutrition
Exercise
Second Trimester
Increase Insulin
More Likely to Develop Hypoglycemia than Hyperglycemia
Third Trimester
Double or Quadruple Insulin
Early Delivery
Postpartum
Drastically Decrease Insulin
Monitor Neonate for Hypoglycemia
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3 mins
Eclampsia
Mechanism of Action
Increased Central Nervous System Irritability
Signs and Symptoms
Hyperreflexia
Positive Ankle Clonus
Headaches
Visual Disturbances
Epigastric or RUQ Pain
Seizures
Coma
Considerations
Don't Leave Bedside
Magnesium Sulfate
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2 mins
Mechanism of Labor
Engagement
Descent
Flexion
Internal Rotation
Extension
External Rotation (Restitution)
Expulsion of Infant
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2 mins
Induction of Labor
Indications
Premature Rupture of Membranes
Danger to Fetus or Mother
Prolonged Gestation
Contraindications
Placenta Abnormalities
Transverse Fetal Position
Prolapsed Umbilical Cord
Active Genital Herpes Infection
Transfundal Uterine Incision
Hemorrhage
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3 mins
Premature Rupture of Membranes (PROM)
Pathophysiology
Rupture > 1 Hour Before Labor
Risk Factors
Infection
PROM History
Incompetent Cervix
Diagnosis
Fern Test
Nitrazine Paper Test
Ultrasound
Treatment
Consider Tocolytics
Consider Antibiotics
< 34 Weeks Gestation
Corticosteroids
> 34 Weeks Gestation
Induction of Labor
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2 mins
True vs. False Labor
Bloody Show
True Labor
Regular, Strong Contractions
Progressive Effacement and Dilation
Engagement of Presenting Part
False Labor
Irregular Contractions
Cervix Soft
No Engagement of Presenting Part
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2 mins
Early Decelerations
Cause
Fetal Head Compression
Occurs During
Uterine Contractions
Placement of Internal Mode of Monitoring
Vaginal Examination
Fundal Pressure
Considerations
Normal Pattern
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1 min
Decelerations (and Accelerations) Overview
VEAL CHOP
Variable Deceleration
Cord Compression
Early Deceleration
Head Compression
Acceleration
Okay
Late Deceleration
Placental Insufficiency
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2 mins
Variable Decelerations
Mechanism
Umbilical Cord Compression
Occurs During
Abnormal Cord Position
Considerations
Transition Phase
Interventions
Oxygen with Non-Rebreather (8-10 L/min)
Change Maternal Position
Discontinue Oxytocin
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2 mins
Late Decelerations
Cause
Uteroplacental Insufficiency
Occurs During
Disruption of Oxygen Transfer to Fetus
Considerations
Abnormal Pattern
Interventions
Discontinue Oxytocin
Oxygen with Non-Rebreather (8-10 L/min)
Side-lying Position
Elevate Legs
Increase Rate of IV Solution
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2 mins
Cesarean Section - Indications
Maternal Indications
Active Genital Herpes Infection
Cervical Cancer
Eclampsia (Preeclampsia)
History of Uterine Surgery
History of C-section (Vertical)
Fetal Indications
Malpresentation
Fetal Distress
Cord Compression/Prolapse
Other Indications
Failed Vaginal Delivery
Cephalopelvic Disproportion
Abruptio Placentae or Placenta Previa
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2 mins
Prolapsed Umbilical Cord
Mechanism
Cord Prolapses
Signs and Symptoms
Visualization of Cord
Prolonged or Variable Decelerations
Considerations
Hips Elevated
Insert 2 fingers in Vagina
Saline Towel on Cord
Oxygen
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2 mins
Postpartum Hemorrhage
Mechanism
Uterine Atony
Lacerations
Retained Placenta
Signs and Symptoms
Bleeding
Hypotension
Boggy Uterus
Considerations
Oxytocin
Bimanual Compression of Uterus
Surgery
Blood Transfusion
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2 mins

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