BLD 402, EXAM 4 QUESTIONS AND ANSWERS WITH
COMPLETE SOLUTIONS GRADED A++
Which of the following is true about estriol (E3)?
Maternal serum concentration of is dependent on both placental and fetal metabolism.
A woman who is 20 weeks pregnant has produced the following lab test results:
serum hCG normal, serum progesterone normal, E3 not detected. These three
tests had been normal until now. Of the following conditions, which would best fit
with this data set?
recent death of fetus in-utero
Which test most correlates with the severity of HDN (hemolytic disease of
newborn)?
amniotic fluid bilirubin level
Which of the following is true about L/S ratio?
L/S ratio ≥ 2.0 means the fetus lung is mature.
What is the cause of respiratory distress syndrome in newborns?
insufficient production of surfactant
Cerebrospinal fluid (CSF) is formed at where?
Choroid plexus
What is the main role of a clinical lab for psychiatric disorders?
therapeutic drug monitoring
, Look at this CSF test results: decreased glucose, increased proteins, increased
lactate, increased WBC (mostly neutrophils).
What is the most likely cause?
Bacterial meningitis
The diagnosis of multiple sclerosis is often based on what?
The presence of oligoclonal bands by CSF electrophoresis.
What is hCG?
a crucial pregnancy hormone produced by the placenta after implantation
What are the functions of hCG?
-stimulates the corpus luteum to produce progesterone and estrogen, which are
essential for maintaining pregnancy
-also supports fetal growth and development
Menopause effect on hCG
in a rare cases, the pituitary gland may start producing hCG during menopause, leading
to elevated levels.
How is hCG related to certain pathological conditions?
-Choriocarcinoma and testicular cancer: tumors producing high levels of hCG
-Ectopic Pregnancy: Lower levels of hCG may be seen in ectopic pregnancies
compared to normal pregnancies
-Hydatidiform Mole: type of molar pregnancy characterized by abnormal growth of
placental tissue and high levels of hCG
What are the different types of molar pregnancy?
COMPLETE SOLUTIONS GRADED A++
Which of the following is true about estriol (E3)?
Maternal serum concentration of is dependent on both placental and fetal metabolism.
A woman who is 20 weeks pregnant has produced the following lab test results:
serum hCG normal, serum progesterone normal, E3 not detected. These three
tests had been normal until now. Of the following conditions, which would best fit
with this data set?
recent death of fetus in-utero
Which test most correlates with the severity of HDN (hemolytic disease of
newborn)?
amniotic fluid bilirubin level
Which of the following is true about L/S ratio?
L/S ratio ≥ 2.0 means the fetus lung is mature.
What is the cause of respiratory distress syndrome in newborns?
insufficient production of surfactant
Cerebrospinal fluid (CSF) is formed at where?
Choroid plexus
What is the main role of a clinical lab for psychiatric disorders?
therapeutic drug monitoring
, Look at this CSF test results: decreased glucose, increased proteins, increased
lactate, increased WBC (mostly neutrophils).
What is the most likely cause?
Bacterial meningitis
The diagnosis of multiple sclerosis is often based on what?
The presence of oligoclonal bands by CSF electrophoresis.
What is hCG?
a crucial pregnancy hormone produced by the placenta after implantation
What are the functions of hCG?
-stimulates the corpus luteum to produce progesterone and estrogen, which are
essential for maintaining pregnancy
-also supports fetal growth and development
Menopause effect on hCG
in a rare cases, the pituitary gland may start producing hCG during menopause, leading
to elevated levels.
How is hCG related to certain pathological conditions?
-Choriocarcinoma and testicular cancer: tumors producing high levels of hCG
-Ectopic Pregnancy: Lower levels of hCG may be seen in ectopic pregnancies
compared to normal pregnancies
-Hydatidiform Mole: type of molar pregnancy characterized by abnormal growth of
placental tissue and high levels of hCG
What are the different types of molar pregnancy?
