ARDMS OBSTETRICS /ARDMS OB/GYN ACTUAL
EXAM AND PRACTICE EXAM NEWEST 2024
COMPLETE 300 QUESTIONS AND CORRECT
DETAILED ANSWERS WITH RATIONALES (VERIFIED
ANSWERS) |ALREADY GRADED A+||BRAND NEW
VERSION!!
What is the most accurate sonographic measurement during the first trimester? -
CORRECT ANSWER>>CRL (Crown Rump Length)
Why is the CRL no longer considered accurate after the 12th week of gestation? -
CORRECT ANSWER>>Because of the flexion and extension of the active fetus.
What is the first and most widely accepted means of measuring the fetal head and
estimating fetal age? - CORRECT ANSWER>>BPD (Biparietal Diameter)
What level should the BPD be measured at? - CORRECT ANSWER>>At the level of
the thalamus and the cave septum pellucidum
How should the calipers be placed to measure the BPD? - CORRECT
ANSWER>>Outer edge to inner edge (Leading edge)
What is another valuable measurement of the fetal head to asses gestational age?
- CORRECT ANSWER>>Head circumference
What is the cephalic index formula? - CORRECT ANSWER>>BPD/OFDx100
-Biparietal diameter
-Occipitofrontal diameter
What is the normal cephalic index? - CORRECT ANSWER>>75% to 85%
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Define Brachycephaly - CORRECT ANSWER>>When the head is elongated in the tv
plane (BPD) and shortened in the anteroposterior diameter (OFD).
If the CI is greater than 85%, what does that suggest? - CORRECT
ANSWER>>Brachycephaly
Define Dolichocephaly - CORRECT ANSWER>>The head is shortened in the tv
plane (BPD) and elongated in the anteroposterior diameter (OFD).
If the CI is less than 75%, what does that suggest? - CORRECT
ANSWER>>Dolichocephaly
What measurement is more useful as a growth parameter than predicting
gestational age? - CORRECT ANSWER>>Abdominal circumference (AC)
What level should the abdominal circumference be measured? - CORRECT
ANSWER>>In the tv plane at the level of the umbilical vein as it joins the left portal
vein within the liver
What is the first trimester risk sonographic examination also called? - CORRECT
ANSWER>>The nuchal translucency examination
What does the nuchal translucency examination measure? - CORRECT
ANSWER>>1. Measurement of the nuchal translucency
2. CRL (Crown-Rump Length)
3. Visualization of the fetal nasal bone
What does the standard obstetric sonography examination evaluate? - CORRECT
ANSWER>>1. Gestational age by fetal biometry
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2. Fetal number
3. Placental position
4. Cardiac activity
5. AFI (Amniotic Fluid Index)
6. Fetal anatomic survey
Define gravidity - CORRECT ANSWER>>The number of pregnancies
Define parity - CORRECT ANSWER>>A numeric system that describes all possible
pregnancies
What are the numbers representing in the parity numeric system? - CORRECT
ANSWER>>1. Full term pregnancies
2. Premature births and stillborns
3. Miscarriages or termination
4. Living children
What is the standard way to date a pregnancy? - CORRECT ANSWER>>LMP (Last
Menstrual Period)
Pregnancy is divided into how many trimesters? - CORRECT ANSWER>>3
How long is the first trimester? - CORRECT ANSWER>>From the beginning of the
pregnancy to 13 weeks and 6 days.
How long is the second trimester? - CORRECT ANSWER>>From 14 weeks to 26
weeks and 6 days.
How long is the third trimester? - CORRECT ANSWER>>Begins at 27 weeks
gestation until term.
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What is Nagele's rule? - CORRECT ANSWER>>EDD (Estimated Due Date) = 3
months from LMP + 7 days
What fetal biometry is used in the estimate in fetal weight? - CORRECT
ANSWER>>AC (Abdominal Circumference)
What is conceptual age also known as? - CORRECT ANSWER>>Embryonic age
What is conceptual age? - CORRECT ANSWER>>With conception as the first day of
pregnancy
What is gestational age? - CORRECT ANSWER>>Considers the first day of the last
menstrual period as the beginning of gestation
What is gestational age also known as? - CORRECT ANSWER>>Menstrual age
What is the conceptus called during the implantation process? - CORRECT
ANSWER>>A zygote
What is the zygote called from the implantation to 10 weeks? - CORRECT
ANSWER>>An embryo
What is the embryo called after the 10 weeks? - CORRECT ANSWER>>A fetus
What is the cell division process of a zygote? - CORRECT ANSWER>>1.Rapid
cellular division forms the 16-cell morula
2.Further division brings the morula to the blastocyst stage
3.The blastocyst contains trophoblastic calls.
4.The trophoblastic cells begin to secrete hCG