Prenatal screening and diagnosis of fetal abnormalities like Down syndrome is important given the significant morbidity, mortality, and financial costs associated with these conditions. New screening techniques using cell-free fetal DNA analysis from maternal blood, known as non-invasive prenatal testing (NIPT), have been shown to detect Down syndrome and other trisomies with over 99% accuracy and a false positive rate below 1%. While NIPT has advantages over traditional screening by being non-invasive and having higher detection rates and lower false positives, diagnostic testing through amniocentesis or CVS is still recommended for positive NIPT results to confirm the diagnosis. NIPT is becoming the standard of care for high risk pregnancies but further validation is still needed
The couples who are planning for a baby, non-invasive pregnancy testing will help you to find out the chances of your baby being born with some common chromosomal conditions.
PGD is a state-of-the-art procedure used in conjunction with In Vitro Fertilization (IVF) in which the embryo is tested for certain conditions prior to being placed in the womb of the woman.
The couples who are planning for a baby, non-invasive pregnancy testing will help you to find out the chances of your baby being born with some common chromosomal conditions.
PGD is a state-of-the-art procedure used in conjunction with In Vitro Fertilization (IVF) in which the embryo is tested for certain conditions prior to being placed in the womb of the woman.
Lecture on prenatal genetic diagnostic techniques and their value in detection of prenatal genetic anomalies. This lecture details techniques employed in the common diagnostic interventions used in prenatal period and their usefulness.
NIPT (Non-Invasive Prenatal Testing) otherwise known as NIPD (Non-Invasive Prenatal Diagnosis) is used to analyze the cell-free fetal DNA which is circulated in maternal blood.
Prenatal Testing, deteksi kelainan bawaan sejak dalam kandunganHendrik Sutopo
Pengenalan mengenai prenatal diagnosis.
Memberikan gambaran sekilas mengenai cara-cara untuk mengetahui kelainan bawaan sejak janin dalam kandungan.
lebih ditujukan untuk kalangan medis.
Non Invasive Prenatal Testing (NIPT)
Lecture on prenatal genetic diagnostic techniques and their value in detection of prenatal genetic anomalies. This lecture details techniques employed in the common diagnostic interventions used in prenatal period and their usefulness.
NIPT (Non-Invasive Prenatal Testing) otherwise known as NIPD (Non-Invasive Prenatal Diagnosis) is used to analyze the cell-free fetal DNA which is circulated in maternal blood.
Prenatal Testing, deteksi kelainan bawaan sejak dalam kandunganHendrik Sutopo
Pengenalan mengenai prenatal diagnosis.
Memberikan gambaran sekilas mengenai cara-cara untuk mengetahui kelainan bawaan sejak janin dalam kandungan.
lebih ditujukan untuk kalangan medis.
Non Invasive Prenatal Testing (NIPT)
Maternal screening for fetal Aneuploidy- Update on Laboratory TestsDr. Rajesh Bendre
Maternal screening for aneuploidy disorders using maternal serum hormonal immunossay levels & statistical risk algorithm is recommended to be used as a universal process as per ACOG & SOGC. Maternal blood has circulating fetal DNA which can be targeted in screening molecular tests like Non-Invasive prenatal testing(NIPT) for identifying aneuploidy. However, confirmatory tests still are cytogenetics (karyotyping) based tests using sample from amniocentesis or CVS.
When a lady visits her Obstetrician, she may be advised Ultrasonography Scan at some stage in pregnancy. It is a frequently asked question as to how many scans should she undergo during pregnancy? When? Why? (for what purpose?). I have explained this in simplified manner. Ultrasonography is an ideal and safe screening tool in pregnancy.
Human reproduction is remarkably inefficient; Only 420 are born alive out of 1000 fertilizations, nearly 70% of human conceptions do not survive to live birth. The stillbirth in india is highest in the world 7% to 14% in different states Odisha 8% Karnataka 14% (of course reported only) Recurrent pregnancy loss is a psychologically stressful diagnosis for couples, in approximately 50% of cases, no cause will be found. The number of evidence-based practices available for guidance is limited. This confluence of factors presents a challenge for clinicians. However, in studies of interventions aimed at reducing rates of miscarriage in women with otherwise unexplained RPL, control groups experience a live birth rate of up to 87% with no intervention. Thus, one of the most significant things we can do when caring for these complex patients is to offer them emotional support and accurate information. As more work is done in this emerging area of reproductive science, we will be able to shed more light on this complex problem.
ISO 15189 2022 standards for laboratory quality and competencePathKind Labs
The fourth edition of standards for laboratory quality and competence are available. Labs need to perform gap analysis to identify areas that need to be developed to fulfill the new requirements.
recently the fourth edition of ISO 15189 2022 have been released. It has aligned itself to its parent document ISO 17025 and focused on risk assessment
management of childhood tuberculosis in 2023.pptxPathKind Labs
diagnosis of childhood TB is a challange, but if we follow a system of screening and then appropriate diagnostic tests following contact tracing, we are likely to identify children with infection or disease and put them on appropriate treatment.
Recently ISO 15189:2022 have become available. This would help laboratories set up processes which would yield reproducible results and improve the quality of work.
viral markers in diagnosis monitoring and treatment of hepatitis b and c.pptxPathKind Labs
Hepatitis B Virus and Hepatitis C Virus infections are transmitted by parentral route. Early diagnosis and treatment can prevent cirrhosis of liver in HCV cases as drugs which can cure the infection are now available.
Covid-19 pandemic has caused over 6 million deaths and has been acknowledged as one of the worst pandemic in living memory. But antimicrobial resistance as invisble pandemic may clain more deaths every year if suitable action is not taken soon.
While MIC is a good measure of antibiotic activity, it is static and reflects in vitro activity. PK and PD of the drug needs to be considered together with MIC if we wish to obtain an in vivo prediction of drug action and success.
clinical standards for ds tb treatment 2022 (1).pptxPathKind Labs
To diagnose and treat drug susceptible pulmonary tuberculosis is of paramount importance in our efforts to eliminate tuberculosis. This describes seven clincal standards which should be practiced to obtain optimum results
what is new in prevention, diagnosis and treatment of tuberculosis tb short.pptxPathKind Labs
Many changes have been made recently in Tuberculosis. The first important change is that instead of control now the focus is on eradication. for that to happen we need to change the way we detect, diagnose and treat tuberculosis.
Procalcitonin is an excellent biomarker for antibiotic use in bacterial infections alone. POCT guided PCT levels can help decide whether to add antibiotics or not in opd settings for respiratory tract infection.
While the world was focused on covid 19, WHO has made and issued consolidated guidelines making changes in how to prevent, diagnose and treat tuberculosis.
Understanding and implementing quality management system in medical laboratoriesPathKind Labs
QMS is essential to run a good laboratory, but the various requirements pose a big challenge. Once you understand the reason for these requirements compliance may be easier.
RT PCR is too slow for effective control of spread of cov 2 infection, rapid antigen test by giving results in less than 30 minutes can help identify infected persons leading to quick isolation.Lack of sensitivity can be compensated by repeating RAT after a day or so.
COVID-19 PCR tests remain a critical component of safe and responsible travel in 2024. They ensure compliance with international travel regulations, help detect and control the spread of new variants, protect vulnerable populations, and provide peace of mind. As we continue to navigate the complexities of global travel during the pandemic, PCR testing stands as a key measure to keep everyone safe and healthy. Whether you are planning a business trip, a family vacation, or an international adventure, incorporating PCR testing into your travel plans is a prudent and necessary step. Visit us at https://www.globaltravelclinics.com/
KEY Points of Leicester travel clinic In London doc.docxNX Healthcare
In order to protect visitors' safety and wellbeing, Travel Clinic Leicester offers a wide range of travel-related health treatments, including individualized counseling and vaccines. Our team of medical experts specializes in getting people ready for international travel, with a particular emphasis on vaccines and health consultations to prevent travel-related illnesses. We provide a range of travel-related services, such as health concerns unique to a trip, prevention of malaria, and travel-related medical supplies. Our clinic is dedicated to providing top-notch care, keeping abreast of the most recent recommendations for vaccinations and travel health precautions. The goal of Travel Clinic Leicester is to keep you safe and well-rested no matter what kind of travel you choose—business, pleasure, or adventure.
Cold Sores: Causes, Treatments, and Prevention Strategies | The Lifesciences ...The Lifesciences Magazine
Cold Sores, medically known as herpes labialis, are caused by the herpes simplex virus (HSV). HSV-1 is primarily responsible for cold sores, although HSV-2 can also contribute in some cases.
Under Pressure : Kenneth Kruk's StrategyKenneth Kruk
Kenneth Kruk's story of transforming challenges into opportunities by leading successful medical record transitions and bridging scientific knowledge gaps during COVID-19.
ICH Guidelines for Pharmacovigilance.pdfNEHA GUPTA
The "ICH Guidelines for Pharmacovigilance" PDF provides a comprehensive overview of the International Council for Harmonisation of Technical Requirements for Pharmaceuticals for Human Use (ICH) guidelines related to pharmacovigilance. These guidelines aim to ensure that drugs are safe and effective for patients by monitoring and assessing adverse effects, ensuring proper reporting systems, and improving risk management practices. The document is essential for professionals in the pharmaceutical industry, regulatory authorities, and healthcare providers, offering detailed procedures and standards for pharmacovigilance activities to enhance drug safety and protect public health.
Medical Technology Tackles New Health Care Demand - Research Report - March 2...pchutichetpong
M Capital Group (“MCG”) predicts that with, against, despite, and even without the global pandemic, the medical technology (MedTech) industry shows signs of continuous healthy growth, driven by smaller, faster, and cheaper devices, growing demand for home-based applications, technological innovation, strategic acquisitions, investments, and SPAC listings. MCG predicts that this should reflects itself in annual growth of over 6%, well beyond 2028.
According to Chris Mouchabhani, Managing Partner at M Capital Group, “Despite all economic scenarios that one may consider, beyond overall economic shocks, medical technology should remain one of the most promising and robust sectors over the short to medium term and well beyond 2028.”
There is a movement towards home-based care for the elderly, next generation scanning and MRI devices, wearable technology, artificial intelligence incorporation, and online connectivity. Experts also see a focus on predictive, preventive, personalized, participatory, and precision medicine, with rising levels of integration of home care and technological innovation.
The average cost of treatment has been rising across the board, creating additional financial burdens to governments, healthcare providers and insurance companies. According to MCG, cost-per-inpatient-stay in the United States alone rose on average annually by over 13% between 2014 to 2021, leading MedTech to focus research efforts on optimized medical equipment at lower price points, whilst emphasizing portability and ease of use. Namely, 46% of the 1,008 medical technology companies in the 2021 MedTech Innovator (“MTI”) database are focusing on prevention, wellness, detection, or diagnosis, signaling a clear push for preventive care to also tackle costs.
In addition, there has also been a lasting impact on consumer and medical demand for home care, supported by the pandemic. Lockdowns, closure of care facilities, and healthcare systems subjected to capacity pressure, accelerated demand away from traditional inpatient care. Now, outpatient care solutions are driving industry production, with nearly 70% of recent diagnostics start-up companies producing products in areas such as ambulatory clinics, at-home care, and self-administered diagnostics.
The dimensions of healthcare quality refer to various attributes or aspects that define the standard of healthcare services. These dimensions are used to evaluate, measure, and improve the quality of care provided to patients. A comprehensive understanding of these dimensions ensures that healthcare systems can address various aspects of patient care effectively and holistically. Dimensions of Healthcare Quality and Performance of care include the following; Appropriateness, Availability, Competence, Continuity, Effectiveness, Efficiency, Efficacy, Prevention, Respect and Care, Safety as well as Timeliness.
Navigating Challenges: Mental Health, Legislation, and the Prison System in B...Guillermo Rivera
This conference will delve into the intricate intersections between mental health, legal frameworks, and the prison system in Bolivia. It aims to provide a comprehensive overview of the current challenges faced by mental health professionals working within the legislative and correctional landscapes. Topics of discussion will include the prevalence and impact of mental health issues among the incarcerated population, the effectiveness of existing mental health policies and legislation, and potential reforms to enhance the mental health support system within prisons.
International Cancer Survivors Day is celebrated during June, placing the spotlight not only on cancer survivors, but also their caregivers.
CANSA has compiled a list of tips and guidelines of support:
https://cansa.org.za/who-cares-for-cancer-patients-caregivers/
CHAPTER 1 SEMESTER V PREVENTIVE-PEDIATRICS.pdfSachin Sharma
This content provides an overview of preventive pediatrics. It defines preventive pediatrics as preventing disease and promoting children's physical, mental, and social well-being to achieve positive health. It discusses antenatal, postnatal, and social preventive pediatrics. It also covers various child health programs like immunization, breastfeeding, ICDS, and the roles of organizations like WHO, UNICEF, and nurses in preventive pediatrics.
The global radiation oncology market size reached US$ 8.1 Billion in 2023. Looking forward, IMARC Group expects the market to reach US$ 14.5 Billion by 2032, exhibiting a growth rate (CAGR) of 6.5% during 2024-2032.
More Info:- https://www.imarcgroup.com/radiation-oncology-market
Rate Controlled Drug Delivery Systems, Activation Modulated Drug Delivery Systems, Mechanically activated, pH activated, Enzyme activated, Osmotic activated Drug Delivery Systems, Feedback regulated Drug Delivery Systems systems are discussed here.
Deep Leg Vein Thrombosis (DVT): Meaning, Causes, Symptoms, Treatment, and Mor...The Lifesciences Magazine
Deep Leg Vein Thrombosis occurs when a blood clot forms in one or more of the deep veins in the legs. These clots can impede blood flow, leading to severe complications.
This document is designed as an introductory to medical students,nursing students,midwives or other healthcare trainees to improve their understanding about how health system in Sri Lanka cares children health.
1. Prenatal Diagnosis of
fetal abnormalities
Dr Ashok Rattan, MD, MAMS
Chief Operating Officer &
Medical Director,
Star Metropolis Clinical Lab
Dubai, Sharjah, RAK
2. BOY or GIRL ? With Blue Eyes ?? Tall or short ??
Is all coded in our genes and NOT in our STARS
3. • Gene: A gene is a stretch of DNA whose
sequence determines the structure and function
of a specific functional molecule (usually a protein)
• Chromosome: Genes are located in the cell
nucleus on chromosomes
• Karyotype: ordered arrangement of
chromosomes in order of their size
– Human have 23 pairs of chromosomes [one set from each parent]
– 22 are autosomal, last pair sex chromosome; 46, xy or 46,xx
• Aneuploidy refers to cytogenetic abnormalities
in which entire or part of one or more
chromosome is added or deleted.
– Autosomal or sex chromosome aneuploidy
7. Down Syndrome
47,xx or xy, +21
• Commonest chromosomal abnormality
• Most frequent form of intellectual disability
• Characterized by:
– Severe learning disability (IQ about 40)
– Short stature
– Characteristic Facial features
– Heart defects ( 40 to 50 %)
• Caused by a demonstrable chromosomal
abnormality
8. Rationale for screening
• Frequent occurrence
– 1 in 634 live births
• More common with advanced maternal age
• Significant burden of increased morbidity &
mortality, besides financial stress
• Diagnostic tests readily available
• 40% of affected pregnancies are lost
spontaneously
9. Down Syndrome
Why terminate electively ?
• Associated with significant morbidity &
mortality
• High financial & psychological cost to family
• Severe learning disability (IQ < 40)
• Heart defects (40 to 50%)
• Intestinal malformation (10%)
• Vision & hearing problems (50%)
• Increased frequency of infection
10. Candidate for prenatal screening
• High maternal age
– Risk is non linear
– 1 in 1500 in young, 1 in 10
in 48 yrs old mother
– Risk is constant between
15 to 25 yrs
– 14% of pregnant mothers
were 35 yrs or older &
accounted for 51% of all
Down syndrome births;
oldest 5% for 30%
– Effect of paternal age is
uncertain
11. Importance of Screening All Pregnant
Women
Majority of
babies born with
Down syndrome
are in women
under 35 years
old
Majority of
babies born with
Down syndrome
are in women
under 35 years
old
12. 63, 398 new born babies in Dubai born between 1999-2003
24,250 UAE nationals; 39,148 non UAE nationals
141 karyotyping confirmed cases of Down Syndrome
139 trisomy 21; 1 translocation , 1 mosaic
Overall 1 in 449 live births (2.2 per 1,000)
In UAE nationals 1 in 319 (3.3 per 1,000)
In non UAE 1 in 602 (1.66 per 1,000)
13. Age distribution among UAE and non
UAE mothers with Down Syndrome child
Mean maternal age in UAE nationals 33.48 + 8.08 yrs
41.66 % of mothers were > 35 yrs of age
14. American College of Obstetric &
Gynaecology 2007
• All women be offered aneuploidy screening before 20
wks of gestation
• All women should have option to invasive testing
regardless of maternal age
• Fetal karyotype rather than serum screen should be
considered in women of any age at high risk
– A previous pregnancy complicated by fetal trisomy
– At least one major or two minor fetal abnormalities
in current pregnancy
– Chromosomal translocation, inversion or aneuploidy
in themselves or in partner
15. Screening Tests
• Maternal serum markers
– Serum marker pattern is related to poorly
functional fetal tissue with compensatory maternal
hyperfunction
• Low alpha fetoprotein
• Low unconjugated estriol
• High maternal serum human chorionic
gonadoropin
• High Inhibin A
• Ultrasound for nucheal translucency
• other risk factors (ethnicity, maternal age,
maternal weight, DM, Smoking)
16. PAPP-A levels increase by
30 to 50% per wk between
10 to 13 wks
Free or total hCG reach
Peak At 10 wks & decline
by 10 to 30 % /wk free
or 5 to 10% total
Pregnancy Associated Plasma Protein A
Blue line indicates unaffected pregnancy, Red line indicated Down Syndrome affected pregnancy
17. 1st
trimester Combined test
• Sonography:
– Nuchal translucency
– Gestational age: crown rump length
• Serum markers:
– Pregnancy associated plasma protein A
(PAPP-A)
– Free or total hCG hormone
• Time: 9 to 13 wks of gestation
• Diagnostic test for screen positive:
– Chorionic villus sampling
18.
19. Integrated test
• A. Full integrated test
• B. Serum integrated test
– PAPP A
– hCG
– Alfa Fetoprotein
– Unconjugated estriol (uE3)
– Inhibin A
20. Increase by 15 to 20%/wk by 20 to 25%/wk
Decrease exponentially from peak nadir at 17 wks
At 15 wks
21. Quadruple Test
• Best screening option for women who
present late for prenatal care (15 to 18
wks)
• Four maternal blood biomarkers tested
– Alfa fetoprotein
– uE3
– hCG
– Inhibin A
23. Screen Positive
• When risk of Down syndrome in > 1 in 250
• Report provides actual calculated risk (>1 in
50)
• If ultrasound was not performed, do it now
• Rule out other causes : multiple pregnancies
• Double check TRF and information entered
• Repeating Serum screening tests is not
recommended
24.
25. FPR=5.0% FPR<0.1%
Non Invasive
Prenatal Test
Evolution of Trisomy Assessment
ACOG Practice Bulletin No. 77. Obstet Gynecol 2007;109:217-27.
Detection rate for Down syndrome
26. Invasive Diagnostic Test for
Screen Positive
• Diagnostic test must be offered
– Karyotyping on sample obtained following
either
– Amniocentesis or
28. Sources of Fetal DNA in
Maternal Blood
Cells (~1 fetal cell per 1 billion total cells)
• Persist between pregnancies
Cell-free DNA (Not fetal per se)
• 150-200 base pairs in length
• By 10 weeks’ gestation
~90% of total is maternal
oprimarily from apoptosis of blood cells
~10% is from the pregnancy
oprimarily from apoptosis of placental cells
• Half life < 20 minutes
• Undetectable < 2 hours postpartum
• Has been used for years for fetal RhD genotyping
30. Performance Comparison
CVS Amnio Sequential NIPT
Timing 11-13 weeks ≥16 weeks 10-22 weeks ≥10 weeks
Procedure Invasive Invasive Ultrasound and
maternal blood
Maternal
blood
Risk 1%
miscarriage
0.1%
miscarriage
None
to pregnancy
None
to pregnancy
Sensitivity >99%
for
aneuploidy
>99%
for
aneuploidy
90%
for Down
syndrome
>98%
for Down
syndrome
Specificity >98%
for aneuploidy
(FPR <2%)
>99%
for aneuploidy
(FPR <1%)
95%
for Down
syndrome
(FPR 5%)
>99%
For Down
syndrome
(FPR <0.5%)
Turn around <2 weeks <2 weeks <1 week <2 weeks
31. What is NIPT
• Screening test to prenatally detect Down
syndrome and other aneuploidies (extra or
missing chromosomes)
– trisomy 21, 18, 13
– trisomy of sex chromosomes (XXX, XXY, XYY)
– Turner syndrome (monosomy X)
– triploidy (extra copy of all chromosomes)
32. NIPT
• NIPT measures circulating cell free fetal DNA
(ccffDNA) present in maternal blood (from
trophoblast)
• Comprises ~10% of DNA in maternal blood
• Increases with gestational age
• ccffDNA analysis determines if normal, higher, or
lower than expected quantity of particular DNA
sequences found on select chromosomes (13, 18, 21,
X, Y)
• Performed on maternal blood sample
• As early as 10 weeks’ gestation
33. What’s the evidence for NIPT?
• 7 studies of “high risk” women
• High risk:
– Screen positive
– AMA (≥35 yrs)
– Ultrasound findings
– Family history indicating increased risk
• Previous pregnancy with aneuploidy
34. What’s the evidence for NIPT?
By far most accurate performance for Trisomy 21 / 18
Benn et al, Ultras Obstet Gynecol 2013, 42: 15-33
35. What’s the evidence for NIPT?
• 4 studies on unselected pregnancies
– Most mixed risk, some after pos screen,
AMA, fewer with neg or no screen
– > 14,000 pregnancies total, largest (11,000
significant loss to follow up)
– Similar performance
• Not yet validated in low risk women,
triplets or higher, pregnancies
conceived with egg donation
Benn et al, Ultras Obstet Gynecol 2013, 42: 15-33
36. What’s the evidence for NIPT?
• Failed results
– 6.1% (0.8-9.9) untested for insufficient sample
quality
– 2% (436/22,222) no result after testing
– Rarely happens with conventional screening
– ccffDNA decreases with increased maternal BMI
37. Summary of evidence for NIPT
Disorder Sensitivity FPR
Down syndrome
Trisomy 21
99-100% ~0.1%
Trisomy 18 97-100% ~0.1%
Trisomy 13 79-92% ~0.1%
Sex chromosome
differences
94-99%
38. What do the experts say?
• American College of Obstetricians and
Gynecologists 2012
– Has been validated in industry sponsored
studies on at risk populations
• History of prior pregnancy with trisomy
• Positive multiple marker test
• Parental balanced Robertsonian translocation
with increased risk of fetal trisomy 13/21
• Maternal age >35
• Fetal ultrasound findings with increased risk of
aneuploidy
ACOG Committee Opinion: Dec 2012
39. What do the experts say?
• Society of Obstetricians & Gynecologists of
Canada 2013
Non-invasive prenatal testing using massive
parallel sequencing of cell-free fetal DNA to
test for trisomies 21, 18, and 13 should be an
option available to women at increased risk in
lieu of amniocentesis. Pretest counselling of
these women should include a discussion of
the limitations of non-invasive prenatal testing.
Genetics Ctte Technical Update JOGC: Feb 2013
40. What do the experts say?
• Society of Obstetricians & Gynecologists
of Canada 2013
No irrevocable obstetrical decision should be
made in pregnancies with a positive non-
invasive prenatal testing result without
confirmatory invasive diagnostic testing.
Genetics Ctte Technical Update JOGC: Feb 2013
41. NIPT
What is done ?
• 2 x 10 mL of blood is collected in
special “Streck” tubes [ mix well]
• After 10 weeks of pregnancy
• Results after 10 working days
• Report on
– Trisomy 21, 18 and 13
– Sex aneuploidy : XO, XXY, XXX
– Sex of baby
42. Key differencesKey differences
Different approaches to cfDNA analysis
Binary +/- result
based on z-score
Risk classification
and risk score
Massively Parallel
Shotgun Sequencing
(MPSS)
Directed Approach
NIPT Technology
42
43. Branded market names for the
NIPT tests
• Harmony (LabCorp)
• MaterniT21+ (Sequenom)
• Verifi (Verinata)
• NIFTY (BGI)
• Praena Test (Lifecodexx)
• Panorama (Natera)
44.
45. Testing Beyond Common
Trisomies
Patient wants
current
standard of
care
Clinical Test
to Consider
NIPT
(T21, T18, T13)
Patient wants
comprehensive
genetic
evaluation
Wants full genetic
evaluation of fetus
Invasive testing
with microarray
Only concern is T21,
T18, T13, and sex
aneuploidy
(after counseling re: sex
chromosome aneuploidy)
Wants definitive
information
Invasive testing
with karyotype
Wants safe test
NIPT
with XY
45
Editor's Notes
Detection rates:
Maternal age – 30%
AFP only – 35%
Quad Marker Screen – 81%
First Trimester Screen – 85%
Serum Integrated Screen – 86%
Full Integrated Screen 95%
All of these have a fixed 5% false positive rate (1 in 20 patients).
Harmony Prenatal Test
&gt;99% detection rate
&lt;0.1% FPR (less than 1/1,000)