AUBF- Q2- RATIO

_{Amniotic Fluid, Gastric Juice and Duodenal Contents Examination}

Which of the following is NOT a function of amniotic fluid?

• Provides cushioning to the fetus

• Stabilizes fetal temperature

• Promotes fetal digestion

• Allows fetal movement

Answer explanation

↳ Not a function: Amniotic fluid is not involved in fetal digestion.

↳ Amniotic fluid is for: Cushioning, Stabilizing temperature and allowing movement of the fetus.

_{Amniotic Fluid, Gastric Juice and Duodenal Contents Examination}

Polyhydramnios is primarily caused by:

• Increased fetal urination

• Decreased fetal swallowing of amniotic fluid

• Membrane leakage

• Placental insufficiency

Answer explanation

↳ Polyhydramnios : increase amniotic fluid d/t Decreased fetal swallowing or neural tube defect.

_{Amniotic Fluid, Gastric Juice and Duodenal Contents Examination}

3. The specimen collection for amniotic fluid is done through:

• 1. Thoracentesis

• 1. Amniocentesis

• 1. Paracentesis

• 1. Lumbar puncture

Answer explanation

↳ Amniocentesis - involves extracting amniotic fluid using sterile syringe.

_{Amniotic Fluid, Gastric Juice and Duodenal Contents Examination}

For fetal lung maturity testing, the amniotic fluid should be:

• 1. Stored at room temperature

• 1. Protected from light

• 1. Placed on ice and frozen

• 1. Heated to body temperature

Answer explanation

↳ Fetal Lung Maturity : Placed on ice and frozen → in cold storage, it prevents loss of phospholipids.

● No connection in light.

● Room temperature - prone to contamination

_{Amniotic Fluid, Gastric Juice and Duodenal Contents Examination}

The Fern Test is used to:

• 1. Detect neural tube defects

• 1. Determine fetal sex

• 1. Detect ruptured membranes

• 1. Evaluate fetal lung maturity

Answer explanation

↳ Fern Test : detect ruptured amniotic membrane (primary use)

● It is also use for diagnosing early pregnancy due to increase Estrogen.

_{Amniotic Fluid, Gastric Juice and Duodenal Contents Examination}

Alpha-fetoprotein (AFP) levels are increased in:

• 1. Down Syndrome

• 1. Spina bifida

• 1. Diabetes mellitus

• 1. Turner Syndrome

Answer explanation

↳ AFP indicates Neural Tube Defects such as Spina Bifida (↑AFP level)

_{Amniotic Fluid, Gastric Juice and Duodenal Contents Examination}

Decreased AFP levels suggest:

• Neural tube defects

• 1. Down Syndrome

• 1. Placenta previa

• 1. Preterm labor

Answer explanation

↳ Low AFP levels are associated with chromosomal abnormalities such as Down Syndrome.

_{Amniotic Fluid, Gastric Juice and Duodenal Contents Examination}

The confirmatory test for neural tube defects after an elevated AFP is:

• hCG test

• 1. Fern test

• 1. Acetylcholinesterase test

• 1. Bilirubin measurement

Answer explanation

↳ Acetylcholinesterase test - confirmatory marker for Neural Tube Defects.

_{Amniotic Fluid, Gastric Juice and Duodenal Contents Examination}

A fetal age of 36 weeks can be indicated by amniotic fluid creatinine of:

• 1.0 mg/dL

• 1. 2.0 mg/dL or higher

• 1. 0.5 mg/dL

• 1. 3.5 mg/dL or higher

Answer explanation

↳ ↑ 2.0 amniotic fluid creatinine = 36 weeks of gestation.

_{Amniotic Fluid, Gastric Juice and Duodenal Contents Examination}

hCG is primarily produced by which cells?

• Chief cells

• 1. Cytotrophoblastic cells of placenta

• 1. Parietal cells

• 1. G cells

Answer explanation

↳ Cytotrophoblastic cells - secreted in the placenta (during 1st trimer)