RNC-OB: Questions With Right Solutions (100%)
Menstrual cycle length Correct Answer - 21-40 days; average
28
When is day of ovulation determined by cycle length Correct
Answer - 14 days before cycle begins
Factors that affect cycle/irregularity of ovulation? Correct Answer
- Stress, illness, disrupted routine, poor diet, thyroid disorders,
weight loss/gain
PCOS Correct Answer - Very irregular periods/cycles d/t
enlarged ovaries w/collection of fluid/follicles
Fibroids Correct Answer - Make cycles longer/heavier
Egg survival average Correct Answer - 12-24 hours
Sperm survival average Correct Answer - Up to 5 days in
vagina
Pregnancy can occur Correct Answer - Up to 5 days prior to
ovulation to 1-2 days after
Spinnbarkeit Correct Answer - Fertile cervical mucus; egg
white consistency
Therapeutic abortion Correct Answer - <20 weeks; for medical
indication
Threatened abortion Correct Answer - <20 weeks; vaginal
bleeding
,Threatened abortion s/s Correct Answer - Closed cervix and
mild/no cramping
Threatened abortion Tx Correct Answer - Bedrest, no
intercourse, u/s for status
Inevitable abortion Correct Answer - <20 weeks; bleeding
w/continuous dilation, w/o expulsion of fetal products (early IUFD)
Inevitable abortion s/s Correct Answer - Vaginal
bleeding/cramping
Inevitable abortion risks Correct Answer - Hemorrhage; D&C
may be needed (retained placenta)
Incomplete abortion Correct Answer - <20 weeks; partial
expulsion of conception products
Incomplete abortion s/s Correct Answer - Bleeding/cramping;
not all products of conception passed
Incomplete abortion tx Correct Answer - D&C
Spontaneous/Complete abortion Correct Answer - <20 weeks
or < 500g; spontaneous/complete evacuation of all POC
Spontaneous/Complete abortion s/s Correct Answer -
Bleeding/cramping that stop; cervix closes and symptoms of
pregnancy no longer present
Habitual abortion Correct Answer - 3 or more consecutive
spontaneous abortions
,Habitual abortion tx Correct Answer - Cerclage in 2nd
trimester; placed @ 12-14 weeks
Habitual abortion causes Correct Answer - Incompetent
cervix; chromosomal abnormalities
Missed abortion Correct Answer - <20 weeks; In utero death of
embryo/fetus
Blighted ovum/fetal demise Correct Answer - D&C after 16
weeks difficult
Septic abortion/Septic shock Correct Answer - Pelvic infection
following therapeutic, elective, SAB
Shock s/s Correct Answer - Low no, hypothermia, Liguria
Septic s/s Correct Answer - Fever, chills, kidney failure (back
pain), DIC, ARDS, death
Chromosome disorders (miscarriage/SAB) Correct Answer -
Genetic abnormalities; AMA
Exposures (miiscarriage/SAB) Correct Answer - Drugs, ETOH,
smoking, maternal infections, BV, Parvovirus, rubella,
toxoplasmosis, listeriosis
STDs (miscarriage/SAB) Correct Answer - Gonorrhea, HIV,
herpes
Systemic disorders (miscarriage/SAB) Correct Answer - DM,
SLE, hormonal disorders, hypothyroidism
, High risk (miscarriage/SAB) Correct Answer - Multiple
gestation
Antiphospholipid antibody syndrome Correct Answer -
Autoimmune; increased clotting risk; SLE common
Antiphospholipid antibody syndrome need to know Correct
Answer - Common cause recurrent miscarriage and early/severe
pre E
Heparin antagonist Correct Answer - Protamine sulfate
Antiphospholipid antibody syndrome long-term Correct Answer -
Increased MI, stroke early in life (<50)
Progesterone shots Correct Answer - Given 16-36 weeks; to
prevent recurrent PTL
Progesterone vaginal cream Correct Answer - May be given
orally/IM; especially <20 weeks w/shortened cervix
High Risk Factors Correct Answer - Age (<18 or >35); BMI high
or low; anemia; poor diet; pre-existing conditions; infertility
meds/treatments; MTHFR/Factor X; Previous LGA/SGA, Previous
loss, substance abuse, genetic disorders passed to fetus,
STDs/infections,
MTHR Correct Answer - Methyl tetra hydropholate; prone to
clot; Pre-E risk; thrombophilia
Previous PTD Correct Answer - Highest indication of another
PTD
Menstrual cycle length Correct Answer - 21-40 days; average
28
When is day of ovulation determined by cycle length Correct
Answer - 14 days before cycle begins
Factors that affect cycle/irregularity of ovulation? Correct Answer
- Stress, illness, disrupted routine, poor diet, thyroid disorders,
weight loss/gain
PCOS Correct Answer - Very irregular periods/cycles d/t
enlarged ovaries w/collection of fluid/follicles
Fibroids Correct Answer - Make cycles longer/heavier
Egg survival average Correct Answer - 12-24 hours
Sperm survival average Correct Answer - Up to 5 days in
vagina
Pregnancy can occur Correct Answer - Up to 5 days prior to
ovulation to 1-2 days after
Spinnbarkeit Correct Answer - Fertile cervical mucus; egg
white consistency
Therapeutic abortion Correct Answer - <20 weeks; for medical
indication
Threatened abortion Correct Answer - <20 weeks; vaginal
bleeding
,Threatened abortion s/s Correct Answer - Closed cervix and
mild/no cramping
Threatened abortion Tx Correct Answer - Bedrest, no
intercourse, u/s for status
Inevitable abortion Correct Answer - <20 weeks; bleeding
w/continuous dilation, w/o expulsion of fetal products (early IUFD)
Inevitable abortion s/s Correct Answer - Vaginal
bleeding/cramping
Inevitable abortion risks Correct Answer - Hemorrhage; D&C
may be needed (retained placenta)
Incomplete abortion Correct Answer - <20 weeks; partial
expulsion of conception products
Incomplete abortion s/s Correct Answer - Bleeding/cramping;
not all products of conception passed
Incomplete abortion tx Correct Answer - D&C
Spontaneous/Complete abortion Correct Answer - <20 weeks
or < 500g; spontaneous/complete evacuation of all POC
Spontaneous/Complete abortion s/s Correct Answer -
Bleeding/cramping that stop; cervix closes and symptoms of
pregnancy no longer present
Habitual abortion Correct Answer - 3 or more consecutive
spontaneous abortions
,Habitual abortion tx Correct Answer - Cerclage in 2nd
trimester; placed @ 12-14 weeks
Habitual abortion causes Correct Answer - Incompetent
cervix; chromosomal abnormalities
Missed abortion Correct Answer - <20 weeks; In utero death of
embryo/fetus
Blighted ovum/fetal demise Correct Answer - D&C after 16
weeks difficult
Septic abortion/Septic shock Correct Answer - Pelvic infection
following therapeutic, elective, SAB
Shock s/s Correct Answer - Low no, hypothermia, Liguria
Septic s/s Correct Answer - Fever, chills, kidney failure (back
pain), DIC, ARDS, death
Chromosome disorders (miscarriage/SAB) Correct Answer -
Genetic abnormalities; AMA
Exposures (miiscarriage/SAB) Correct Answer - Drugs, ETOH,
smoking, maternal infections, BV, Parvovirus, rubella,
toxoplasmosis, listeriosis
STDs (miscarriage/SAB) Correct Answer - Gonorrhea, HIV,
herpes
Systemic disorders (miscarriage/SAB) Correct Answer - DM,
SLE, hormonal disorders, hypothyroidism
, High risk (miscarriage/SAB) Correct Answer - Multiple
gestation
Antiphospholipid antibody syndrome Correct Answer -
Autoimmune; increased clotting risk; SLE common
Antiphospholipid antibody syndrome need to know Correct
Answer - Common cause recurrent miscarriage and early/severe
pre E
Heparin antagonist Correct Answer - Protamine sulfate
Antiphospholipid antibody syndrome long-term Correct Answer -
Increased MI, stroke early in life (<50)
Progesterone shots Correct Answer - Given 16-36 weeks; to
prevent recurrent PTL
Progesterone vaginal cream Correct Answer - May be given
orally/IM; especially <20 weeks w/shortened cervix
High Risk Factors Correct Answer - Age (<18 or >35); BMI high
or low; anemia; poor diet; pre-existing conditions; infertility
meds/treatments; MTHFR/Factor X; Previous LGA/SGA, Previous
loss, substance abuse, genetic disorders passed to fetus,
STDs/infections,
MTHR Correct Answer - Methyl tetra hydropholate; prone to
clot; Pre-E risk; thrombophilia
Previous PTD Correct Answer - Highest indication of another
PTD
