Current Diagnosis & Treatment Obstetrics & Gynecology 12th Edition by Alan H. DeCherney
Current Diagnosis & Treatment Obstetrics & Gynecology 12th Edition by Alan H. DeCherney
Complete Test Bank Current Diagnosis and Treatment Obstetrics and Gynecology by Alan Questions & Answers with rationales (Chapter 1-60)
All for this textbook (5)
Written for
Current Diagnosis & Treatment Obstetrics & Gynecol
All documents for this subject (3)
Seller
Follow
phinta004
Reviews received
Content preview
est Bank: Current Diagnosis & Treatment Obstetrics &
Gynecology 12th Edition by Alan H. DeCherney - Ch. 1-60,
9780071833905, with Rationales
A major congenital anomaly is found in ___ of every 100 births. - ANSWER: 3
(An additional 10-15% births are complicated by minor birth defects.)
What are the serum biochemistry methods of screening? (blood work) - ANSWER: -bHCG and PAPP-A
in the 1st trimester
-Quad screen in 2nd tri
What is the PAPP-A blood test specific to? - ANSWER: Down's Syndrome
What is the 1st trimester screening ultrasound? - ANSWER: Nuchal translucency measurement
What should the nuchal translucency measurement be in the 1st tri? - ANSWER: <3mm
What is the 2nd trimester screening ultrasounds? - ANSWER: -Fetal anatomy survey
-Level 2 or 3 US
What needs to happen frequently if an anomaly is found? - ANSWER: -Frequent chemistries and
ultrasounds, BPP and NST
-Special arrangements may need to be made for Postnatal care, Delivery, Surgery
If an anomaly is suspected, particularly if it is suspected to be chromosomal/inherited in origin, a
sample of fetal cells can give a definitive diagnosis. What is this called? - ANSWER: Karyotype Analysis
-allows for examination of fetal chromosomes to detect chromosomally linked disorders and
anomalies
What is Chorionic villus sampling? - ANSWER: An US directed biopsy of the placenta or chorionic villi
(chorion frondosum - the active trophoblastic tissue that becomes the placenta)
Because the chorionic villi are fetal in origin, _____________ abnormalities may be detected in the
cells. - ANSWER: chromosomal
What should you all asses with US before the CVS? - ANSWER: -Uterine/cervical lie to determine best
route for catheter
-Asses fetus in terms of life, morphology and age
-Identify uterine masses or other problems that may interfere
How does a Trans-cervical CVS work? - ANSWER: -Performed with the patient in stirrups
-Guiding stylet is introduced under ultrasound guidance to check uterine and placental position
-Catheter is then introduced and directed into placental tissue
-Cells are aspirated and sent for analysis
What is the TA CVS-Procedure? - ANSWER: -Skin prepped with chloraprep or iodine
-Transducer in sterile cover
-Sterile gel on probe
, -Scan to confirm suitable pocket of fluid
-Procedure done under continuous ultrasound observation, so needle tip is seen
-Cells are aspirated
What can all be detected in chorionic villi? - ANSWER: -Chromosomal abnormalities
-Biochemical disorders
-Metabolic disorders
-Thalassemia
(An inherited blood disorder causing anemia)
-Sickle cell disease
What are the risks involved with CVS? - ANSWER: -Risk of fetal loss associated with CVS is .5%-1.0%
-Some association with limb reduction defects when performed before 8 weeks.
(Due to leak/decrease in amniotic fluid volume)
-RhoGAM should be administered to Rh-negative unsensitized women to prevent any problems with
future pregnancies
What are the advantages of CVS? - ANSWER: -Is an alternative test used to obtain a fetal karyotype,
similar to amniocentesis.
-Performed early in pregnancy (10-12 wks)
-Results are available within 1 week
-Earlier test results allow more options for parents
What is the removal of amniotic fluid from the gestational sac? - ANSWER: Amniocentesis
Why would you perform an Amnio? - ANSWER: -Relieve polyhydramnios
-Predict Rh isoimumunization
-Document fetal lung maturity
-Study fetal cells from amniotic fluid
When is an Amnio performed? - ANSWER: In the 2nd tri (b/w 15-18 weeks)
-genetic reasons
Can you do an amnio as early as 12 weeks? - ANSWER: Yes. but there is a risk of scoliosis or clubfoot
due to reduced amniotic fluid
Results of amnio are usually done within 1 to 3 weeks. If rapid results are desired, FISH can provide an
analysis within 24 hours for the most common chromosomal anomalies. What does FISH stand for? -
ANSWER: Fluorescence in situ hybridization
Who is an amnio offered to? - ANSWER: -Patients at risk for chromosomal abnormality or biochemical
disorder
-AMA is a common reason
-Abnormal AFP on quad screen
-Previous fetus with known congenital abnormality
What is ultrasounds role in an amnio? - ANSWER: -ultrasound guidance during this procedure to
insure the safety of mother and fetus
-Should be done away from the fetus, central portion of placenta, umbilical cord, and near maternal
midline to avoid vessels
-Should include fetal survey to exclude anomalies, targeting areas where anomalies are commonly
seen
-It is very important to avoid the placenta in patients who are Rh Negative, as this can often allow for
the mixing of maternal and fetal blood
-After procedure, document fetal cardiac activity and well being
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller phinta004. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $17.99. You're not tied to anything after your purchase.
