Diagnosis of Pregnancy &
Antenatal Care
5th
year lecture
Dr. Vanilla Banda
BSc. HB, MBChB, MMed (OBGY)-[UNZA]
University Teaching Hospitals (UTHs)- Women & Newborn
Hospital
Date: 23-08-2022
03/10/25 1
Outline
• Diagnosis of pregnancy
• Principles of diagnosis of pregnancy
• Symptoms of pregnancy
• Signs of pregnancy
• Investigations
• Antenatal care
• Components of individual birth plan
03/10/25 2
Diagnosis of pregnancy
• Symptoms
• Signs
• Tests
03/10/25 3
Principles of dx of pregnancy
• Most women ,dx is based on Hx of
amenorrhea & positive pregnancy test.
• Women with irregular menses, dx is complex.
• Other symptoms of pregnancy may alert
clinician on possibility of pregnancy.
03/10/25 4
Symptoms of pregnancy
• Amenorrhoea; pregnancy may occur during
period of lactation amenorrhoea.
• Slight bleeding in early pregnancy may be
considered normal menses.
• Slight bleeding may occur at time of
implantation.
• Morning sickness: nausea, vomiting confined
to morning
03/10/25 5
Symptoms cont.
• Cessation of menstruation
• Easy fatigueability & tendency to sleep.
• Emotional changes e.g. change of appetite
• ↑ frequency of micturition.
• Enlargement of breasts & sensation of heaviness.
• Abdominal enlargement
• Quickening-1st
perception of fetal movements by
woman.
• PG (18-20), MP (16-18 weeks).
03/10/25 6
Signs of Pregnancy
• Chloasma gravidarum
• Butterfly face
• Pigmentation
• Breast signs– ↑pigmentation of nipple &
areola.
• Appearance of Montgomery tubercle in the
areola, dilated sebaceous glands.
03/10/25 7
Abdominal signs
• Inspection - Abdominal stria, linea nigra, fetal
movements as early as 20 weeks.
• Determination of the HOF- uterine size
palpable by 12 weeks GA.
• Auscultation- FHS can be done as early as 20-
24 by pinard stethoscope.
03/10/25 8
Investigations
• Detection of HCG in urine or serum confirms
pregnancy.
• Classically, urinary pregnancy test becomes +ve 7-10
days after 1st
missed period.
• By time mom has missed her 1st
menstrual period,
HCG levels are ~ 100 iu/L.
• Serum pregnancy test classically becomes +ve 5-7
days before 1st
missed period.
03/10/25 9
Investigations cont.
• A quantitative serum HCG assay level of 5iu/L
will usually denote a pregnancy.
• With a normal intrauterine pregnancy, HCG
level will double approx. every 36- 48 hrs.
• Ultrasound will confirm pregnancy.
03/10/25 10
03/10/25 11
• Definition: Refers to heath care provided to
pregnant woman throughout pregnancy until
beginning of labour.
• Overall purpose is to optimize outcome of
pregnancy for mom, her baby & rest of family
• Comprises: Careful history taking and
examination and advice to the pregnant
woman
Antenatal care
03/10/25 12
Goals
• Ensure that the mother is health.
• Ensure delivery of a health infant.
• Anticipate problem.
• Diagnose problems early.
03/10/25 13
Objectives
• Early detection & if possible, prevention of
complications of pregnancy.
• Educate women on danger & emergency signs &
symptoms.
• Prepare woman & her family for childbirth.
• Give education & counselling on family planning.
03/10/25 14
Criteria
•The criterion of normal pregnancy care;
delivery of a single baby in good condition at
term (between 37-41 weeks) with a fetal weight
of 2.5 – 3.5kg & without maternal complication.
03/10/25 15
Schedule of antenatal care
• Medical check up every 4 weeks up to 28
weeks gestation.
• Every 2 weeks until 36 weeks of gestation.
• Every week until delivery but not beyond 41
weeks.
• An average 8-10 antenatal visits .
• More frequent visits may be required if
complications arise.
03/10/25 16
First Visit (Booking Visit)
• Should be preferably done before the second missed
period or after confirmation of pregnancy. WHO
(before 12weeks)
• Take a full history, examination & investigation.
• Objectives
– To assess the health status of the mother
– To assess the fetal viability + gestation age and to obtain
baseline investigations
– To organize continued care and risk assessment
03/10/25 17
First Visit: History
• Accurate dating of gestational age
• Any symptoms – minor or major complaints
• Fetal movement perception
• ANC details – investigations & interventions
• Past obstetric history – Details of any obstetric
complications in previous pregnancies
03/10/25 18
First Visit: History (Cont’d)
• Family history
– Any familial medical conditions
– Family history of congenital anomalies; multifetal
gestations and hypertensive disorders of
pregnancy
• Past medical history
– History of medical illnesses
• Social History
– Smoking, alcohol intake & habitual drugs use
03/10/25 19
Menstrual history
• Ask about- last menstrual period (LMP).
• Regularity and frequency of menstrual cycle.
• Contraception method used.
• Calculate expected date of delivery (EDD) as 1st
day
of LMP -3 months+7 days & change the year.
03/10/25 20
Obstetric History
• Gravidity? Parity? Abortion & living children.
• Weight of infant at birth and duration of
gestation.
• Mode of delivery .
• Maternal or infant complications.
03/10/25 21
Medical and surgical History
• Chronic conditions: as DM, HTN & renal
disease, cardiac disease.
• Previous operation: cesarean section , genital
repair & cervical cerclage .
• Accidents involving injury to the bony pelvis.
03/10/25 22
Minor ailments in pregnancy
• Nausea and vomiting
• Backache
• Constipation
• Leg cramps
• Acidity & heart burn
• Varicose veins
• Ankle edema
• Vaginal discharge
• Dysuria
03/10/25 23
Emergency symptoms (Red flags)
• Vaginal bleeding
• Severe abdominal, epigastric or pelvic pain
• Severe headache with visual disturbance
• Persistent vomiting
• Unconsciousness/ convulsions
• Difficulty in breathing
• Fever, chills
• Absent fetal movements.
03/10/25 24
First visit: Examination
• Vital signs & anthropometry (weight & height)
• Detailed physical exam from head to toe for medical
or surgical illnesses.
• Check for nutritional status of the woman.
• Check for for pallor or anemia (Palmar &
conjunctival) .
• Check for oedema .
• Urine for protein & sugar.
03/10/25 25
Examination Cont.
• Abdominal exam
– Fundal height by symphysis-fundal height measurement by the tape method
– Fetal heart auscultation after 10th week by doppler or 20th week by fetal heart stethoscope
– Fetal presentation after the 28th week but malpresentations abnormal after the 34th week
• Symphysis fundal height :
LMP plus 280 days
Add 7 days , subtract 3 months
MacDonald’s Rule (cm= weeks).
03/10/25 26
Investigations
• Get baseline on the first or following the first
visit.
- FBC/Hb, ABO and Rhesus, RBS,RVT,
- VDRL or RPR to screen for syphilis,
- HBsAg test.
• Imaging: Booking U/S for viability +GA.
03/10/25 27
Supplementation
• Folic acid, Iron (ferrous sulphate or gluconate)
• Deworming drugs e.g. mebendazole
• Anti- malarial e.g. fansidar 1st
dose to be given at 13
weeks.
• Nutritional supplement optional
• Commencement of ART if Reactive.
• Tetanus toxoid
03/10/25 28
Tetanus Toxoid
• 0.5 mL of tetanus toxoid IM.
• 5 doses give life long
protection.
• No maximum interval
between doses.
• TT doses received in school
should be included in the
required 5 doses.
03/10/25 29
03/10/25 30
• Routine activities in ANC clinic: BP, weight, Urinalysis,
nutritional advise, health education messages on
pregnancy, delivery danger signs & hygiene.
• Assessment of fetal & maternal wellbeing.
• At each visit birth preparedness should be emphasized.
• Danger signs in pregnancy & importance of institutional
delivery by skilled attendant.
Routine antenatal care
03/10/25 31
Components of Individual Birth Plan
• Does your client know when her baby is due?
• Has she identified a skilled birth attendant?
• Has she identified a health facility to deliver from?
• Can she list danger signs in pregnancy and delivery?
• Has she identified a decision maker in case of an
emergency?
03/10/25 32
Components of Individual Birth Plan (Cont’d)
• Does she know where/how to get money in case of
an emergency?
• Does she have a transport plan in case of an
emergency?
• Does she have a support person in case of an
emergency?
• Has she collected the birth supplies for the birth?
03/10/25 33
Thank you
03/10/25 34

Antenatal care 2022.ppt..................

  • 1.
    Diagnosis of Pregnancy& Antenatal Care 5th year lecture Dr. Vanilla Banda BSc. HB, MBChB, MMed (OBGY)-[UNZA] University Teaching Hospitals (UTHs)- Women & Newborn Hospital Date: 23-08-2022 03/10/25 1
  • 2.
    Outline • Diagnosis ofpregnancy • Principles of diagnosis of pregnancy • Symptoms of pregnancy • Signs of pregnancy • Investigations • Antenatal care • Components of individual birth plan 03/10/25 2
  • 3.
    Diagnosis of pregnancy •Symptoms • Signs • Tests 03/10/25 3
  • 4.
    Principles of dxof pregnancy • Most women ,dx is based on Hx of amenorrhea & positive pregnancy test. • Women with irregular menses, dx is complex. • Other symptoms of pregnancy may alert clinician on possibility of pregnancy. 03/10/25 4
  • 5.
    Symptoms of pregnancy •Amenorrhoea; pregnancy may occur during period of lactation amenorrhoea. • Slight bleeding in early pregnancy may be considered normal menses. • Slight bleeding may occur at time of implantation. • Morning sickness: nausea, vomiting confined to morning 03/10/25 5
  • 6.
    Symptoms cont. • Cessationof menstruation • Easy fatigueability & tendency to sleep. • Emotional changes e.g. change of appetite • ↑ frequency of micturition. • Enlargement of breasts & sensation of heaviness. • Abdominal enlargement • Quickening-1st perception of fetal movements by woman. • PG (18-20), MP (16-18 weeks). 03/10/25 6
  • 7.
    Signs of Pregnancy •Chloasma gravidarum • Butterfly face • Pigmentation • Breast signs– ↑pigmentation of nipple & areola. • Appearance of Montgomery tubercle in the areola, dilated sebaceous glands. 03/10/25 7
  • 8.
    Abdominal signs • Inspection- Abdominal stria, linea nigra, fetal movements as early as 20 weeks. • Determination of the HOF- uterine size palpable by 12 weeks GA. • Auscultation- FHS can be done as early as 20- 24 by pinard stethoscope. 03/10/25 8
  • 9.
    Investigations • Detection ofHCG in urine or serum confirms pregnancy. • Classically, urinary pregnancy test becomes +ve 7-10 days after 1st missed period. • By time mom has missed her 1st menstrual period, HCG levels are ~ 100 iu/L. • Serum pregnancy test classically becomes +ve 5-7 days before 1st missed period. 03/10/25 9
  • 10.
    Investigations cont. • Aquantitative serum HCG assay level of 5iu/L will usually denote a pregnancy. • With a normal intrauterine pregnancy, HCG level will double approx. every 36- 48 hrs. • Ultrasound will confirm pregnancy. 03/10/25 10
  • 11.
  • 12.
    • Definition: Refersto heath care provided to pregnant woman throughout pregnancy until beginning of labour. • Overall purpose is to optimize outcome of pregnancy for mom, her baby & rest of family • Comprises: Careful history taking and examination and advice to the pregnant woman Antenatal care 03/10/25 12
  • 13.
    Goals • Ensure thatthe mother is health. • Ensure delivery of a health infant. • Anticipate problem. • Diagnose problems early. 03/10/25 13
  • 14.
    Objectives • Early detection& if possible, prevention of complications of pregnancy. • Educate women on danger & emergency signs & symptoms. • Prepare woman & her family for childbirth. • Give education & counselling on family planning. 03/10/25 14
  • 15.
    Criteria •The criterion ofnormal pregnancy care; delivery of a single baby in good condition at term (between 37-41 weeks) with a fetal weight of 2.5 – 3.5kg & without maternal complication. 03/10/25 15
  • 16.
    Schedule of antenatalcare • Medical check up every 4 weeks up to 28 weeks gestation. • Every 2 weeks until 36 weeks of gestation. • Every week until delivery but not beyond 41 weeks. • An average 8-10 antenatal visits . • More frequent visits may be required if complications arise. 03/10/25 16
  • 17.
    First Visit (BookingVisit) • Should be preferably done before the second missed period or after confirmation of pregnancy. WHO (before 12weeks) • Take a full history, examination & investigation. • Objectives – To assess the health status of the mother – To assess the fetal viability + gestation age and to obtain baseline investigations – To organize continued care and risk assessment 03/10/25 17
  • 18.
    First Visit: History •Accurate dating of gestational age • Any symptoms – minor or major complaints • Fetal movement perception • ANC details – investigations & interventions • Past obstetric history – Details of any obstetric complications in previous pregnancies 03/10/25 18
  • 19.
    First Visit: History(Cont’d) • Family history – Any familial medical conditions – Family history of congenital anomalies; multifetal gestations and hypertensive disorders of pregnancy • Past medical history – History of medical illnesses • Social History – Smoking, alcohol intake & habitual drugs use 03/10/25 19
  • 20.
    Menstrual history • Askabout- last menstrual period (LMP). • Regularity and frequency of menstrual cycle. • Contraception method used. • Calculate expected date of delivery (EDD) as 1st day of LMP -3 months+7 days & change the year. 03/10/25 20
  • 21.
    Obstetric History • Gravidity?Parity? Abortion & living children. • Weight of infant at birth and duration of gestation. • Mode of delivery . • Maternal or infant complications. 03/10/25 21
  • 22.
    Medical and surgicalHistory • Chronic conditions: as DM, HTN & renal disease, cardiac disease. • Previous operation: cesarean section , genital repair & cervical cerclage . • Accidents involving injury to the bony pelvis. 03/10/25 22
  • 23.
    Minor ailments inpregnancy • Nausea and vomiting • Backache • Constipation • Leg cramps • Acidity & heart burn • Varicose veins • Ankle edema • Vaginal discharge • Dysuria 03/10/25 23
  • 24.
    Emergency symptoms (Redflags) • Vaginal bleeding • Severe abdominal, epigastric or pelvic pain • Severe headache with visual disturbance • Persistent vomiting • Unconsciousness/ convulsions • Difficulty in breathing • Fever, chills • Absent fetal movements. 03/10/25 24
  • 25.
    First visit: Examination •Vital signs & anthropometry (weight & height) • Detailed physical exam from head to toe for medical or surgical illnesses. • Check for nutritional status of the woman. • Check for for pallor or anemia (Palmar & conjunctival) . • Check for oedema . • Urine for protein & sugar. 03/10/25 25
  • 26.
    Examination Cont. • Abdominalexam – Fundal height by symphysis-fundal height measurement by the tape method – Fetal heart auscultation after 10th week by doppler or 20th week by fetal heart stethoscope – Fetal presentation after the 28th week but malpresentations abnormal after the 34th week • Symphysis fundal height : LMP plus 280 days Add 7 days , subtract 3 months MacDonald’s Rule (cm= weeks). 03/10/25 26
  • 27.
    Investigations • Get baselineon the first or following the first visit. - FBC/Hb, ABO and Rhesus, RBS,RVT, - VDRL or RPR to screen for syphilis, - HBsAg test. • Imaging: Booking U/S for viability +GA. 03/10/25 27
  • 28.
    Supplementation • Folic acid,Iron (ferrous sulphate or gluconate) • Deworming drugs e.g. mebendazole • Anti- malarial e.g. fansidar 1st dose to be given at 13 weeks. • Nutritional supplement optional • Commencement of ART if Reactive. • Tetanus toxoid 03/10/25 28
  • 29.
    Tetanus Toxoid • 0.5mL of tetanus toxoid IM. • 5 doses give life long protection. • No maximum interval between doses. • TT doses received in school should be included in the required 5 doses. 03/10/25 29
  • 30.
  • 31.
    • Routine activitiesin ANC clinic: BP, weight, Urinalysis, nutritional advise, health education messages on pregnancy, delivery danger signs & hygiene. • Assessment of fetal & maternal wellbeing. • At each visit birth preparedness should be emphasized. • Danger signs in pregnancy & importance of institutional delivery by skilled attendant. Routine antenatal care 03/10/25 31
  • 32.
    Components of IndividualBirth Plan • Does your client know when her baby is due? • Has she identified a skilled birth attendant? • Has she identified a health facility to deliver from? • Can she list danger signs in pregnancy and delivery? • Has she identified a decision maker in case of an emergency? 03/10/25 32
  • 33.
    Components of IndividualBirth Plan (Cont’d) • Does she know where/how to get money in case of an emergency? • Does she have a transport plan in case of an emergency? • Does she have a support person in case of an emergency? • Has she collected the birth supplies for the birth? 03/10/25 33
  • 34.