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First Aid for the USMLE Step 2 CK (8th Ed.)
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11 - Obstetrics - Page 281

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First Aid for the USMLE Step 2 CK (8th Ed.) | Medicine (MD/DO) School Study Aid

11 - Obstetrics - Page 281
23 Picmonics to Learn | 46 mins
Toxoplasma gondii TORCH
Signs and Symptoms
Congenital TORCH Infection
Mom Usually Asymptomatic
Rarely Lymphadenopathy
Nonspecific TORCH Signs
Intrauterine Growth Retardation
Hepatosplenomegaly
Deafness
Chorioretinitis
Hydrocephalus
Diagnosis
Calcifications
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1 min
Syphilis TORCH
Signs and Symptoms
Nonspecific TORCH Symptoms
Often Results in Stillbirth
Hydrops Fetalis
Saber Shins
Notched Teeth
Saddle Nose
Blindness
Deafness
Hepatitis
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3 mins
Lab and Diagnostic Tests During Pregnancy
Complete Blood Cell Count
Blood Typing
Rubella Titer
Hepatitis B
HIV Testing
Urinalysis
Diabetes
Pap Smears
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2 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
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
Phenytoin
Indications
Status Epilepticus
Tonic-Clonic Seizures
Mechanism of Action
Blocks Na+ Channel Activation
Inhibition of Glutamate Release
Class IB Antiarrhythmic
Side Effects
Teratogenic
Macrocytic Megaloblastic Anemia
Induce Cytochrome P450
Drug-induced Lupus
Neuropathy
Hirsutism
Gingival Hyperplasia
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1 min
Tetracycline Mechanism
Binds to 30 S to Prevent Attachment of Aminoacyl tRNA
Limited CNS Penetration
Divalent Cations Inhibit Absorption
Must Not Take with Milk, Antacids, Iron
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1 min
Tetracycline Drug Names and Indications
Drug Names
Demeclocycline
Minocycline
Doxycycline
Fecally Eliminated
Can be Used in Renal Failure
Indications
Antidiuretic Hormone Antagonist
Chlamydia
Rickettsia
Borrelia burgdorferi
Helicobacter Pylori
Mycoplasma Pneumonia
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3 mins
Tetracycline Toxicities
Inhibition of Bone Growth in Children
Teratogen
Discoloration of Teeth
Photosensitivity
GI Distress
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2 mins
Cytomegalovirus (CMV) TORCH
Signs and Symptoms
Nonspecific TORCH symptoms
Intrauterine Growth Restriction (Retardation)
Deafness
Microcephaly
Seizures
Periventricular Calcifications
Petechial Rash
Blueberry Muffin Rash
Chorioretinitis
Diagnosis
Urine Viral Culture or PCR
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2 mins
Rubella TORCH
Signs and Symptoms
Nonspecific TORCH Symptoms
Patent Ductus Arteriosus
Pulmonary Artery Hypoplasia
Cataracts
Deafness
Blueberry Muffin Rash
Glaucoma
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1 min
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
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
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
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
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
RhoGam [Rho(D) Immune Globulin]
Indications
Antepartum Prevention at 28 weeks
Suppress Antibody Production
Mechanism of Action
Lysis of Fetal RBC in Maternal Bloodstream
Side Effects
Myalgia and Lethargy
Considerations
Negative Coombs Test
Standard Dose 300 mcg
Microdose 50 mcg
Blood Product
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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
Postpartum Infection
Diagnosis
Fever > 100.4F After 24 Hours (38 C)
Risk Factors
Multiple Vaginal Examinations
Vaginal Trauma
Prolonged Rupture of Membranes
Cesarean Birth
Anemia of Pregnancy
Retained Placental Fragments
Poor Health Status
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3 mins
Sheehan's Syndrome
Postpartum Pituitary Gland Necrosis
Agalactorrhea
Amenorrhea
Secondary Hypothyroidism with Cold Intolerance
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1 min

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