MANA CONFERENCE BOSTON 2002;
Subject -- "Advanced Labs"
(this is my handout from a talk I gave at the boston MANA conference)
Lab work in pregnancy. Now what?
Gail Hart, mana, boston 2002
Im going to start with a quick discussion of the "usual" blood labs, and the way they may change in pregnancy. Then move
on to some specific conditions we might discover in pregnancy (anemias, pre-eclampsia, thrombocytopenias, and abnormal blood
Blood abnormalities are difficult to diagnose in pregnancy because pregnancy is an altered state. It is "natural," but
not "normal", and pregnancy affects the entire physiology. The circulatory system NORMALLY changes in pregnancy. -- which
throws off the "normal range" printed on your lab slips.
Theres an increase of total cell volume of 18% and a plasma volume increase of 40% to 50%. Hemoglobin itself the packed
cell volume --- doesnt change, but plasma rises, and the increase in plasma causes a "hemodilution", which creates "artificial
anemia" or "the physiologic anemia of pregnancy. (Think of adding an extra cup of water to a pitcher of juice mix. There would
still be the same amount of solids in the pitcher, but the juice will be "thinner", weaker. Your kids may blame you for not
adding enough juice mix to the pitcher!)
To make it even more confusing, the plasma levels fluctuate during pregnancy, dropping the hematocrit as much as 4 points
at the time of maximum dilution (32 weeks) before hemoconcentration occurs near term. Ironically, that 32-week point is when
many routine blood tests are repeated. We treat many pregnant women for anemia based on their "diluted" blood condition when
they arent anemic at all. Worse, we use iron supplements to treat mild anemia in pregnancy even though data shows no benefit
and does show potential harm!
A LOW HGB/HCT does not automatically indicate anemia -- especially if the blood is drawn before 36 weeks. After 32 weeks
a "hemoconcentration" occurs and will cause a rise in hgb of as much as 2 points until term. This rise occurs without supplements
of any kind. (We will often be thrilled with how effective our treatments appear, when women begin taking herbs or supplements
during that time period!)
The non-pregnant norms are usually adjusted downward: Im using shorthand numbers. Im sure you all know these are exponents
(IE RBC is actually 3.8x 10/12)
Non-pregnant range pregnant range
Hgb 12.0 to 16 11.0 to 14
Hct - - 35 to 47 32 to 36
RBC 3.8 to 5.20 3.5 to 4.75
WBC 3.5 to 11.0 10.5 to 20
Platelets 140 to 440 (1000) 187 to 300
What do you do when results are outside these ranges?
In general, relax. Pregnant blood values vary so widely and the normal range varies widely in individuals, and lab errors
are common. Something as simple as a delay from the time of blood draw to testing, can affect the numbers you see on your
report! EVERY ABNORMAL RESULT DEMANDS A RETEST BEFORE YOU BEGIN ANY "TREATMENT"! Pregnant women are easily stressed. Lets
make sure an unusual lab result is worth worrying about, before alarming the mom!
Hemoglobin -- low hgb.
We used to think the non-pregnant range of 12.0 to 16 would drop to 11.5 to 14, but new research shows this number may
be several points lower. The NORMAL range of pregnant hgb values may be as low as 10.5 to 12.0! (Stay tuned for new recommendations
on treatment of anemia in pregnancy). Almost every pregnant woman will show a drop of about 2 points in hgb during pregnancy
and yet be just under her beginning number at 40 weeks. We can sometimes prevent this drop by giving iron supplements, (even
though we really should give iron ONLY to women with PROVEN anemia). A low hct in the beginning of pregnancy probably IS a
sign of anemia. After 12 weeks it will be difficult to get an accurate reading.
Stable hemoglobin -- failure of the hemoglobin to drop is an early warning sign of pre-eclampsia.
High hemoglobin generally worrisome, especially in middle trimester. A hgb of above 14 at term is highly suspicious for
Hematocrit think of this as just another way to measure hemoglobin. Everything I said about hgb applies to hct as well.
The hct may fluctuate as much as 4 to 6 points during the course of pregnancy; the hemoglobin is relatively stable in comparison.
High hct is a marker to watch. And old rule of thumb says to expect the hct to drop 4 points from the beginning of pregnancy
and to come back up 3 points by 40 weeks.
RBC falls from 4.5 (per cubic mill) to 3.8. Use to help show "real" versus "physiologic anemia. If RBC is tested after
the first trimester, and is within the normal range, the woman is probably not anemic even if hct/hgb are low (31/10.5).
WBC normally elevated during pregnancy. May run as high as 14,000 or even reach 20,000. (Called "leukocytosis of pregnancy).
Platelets show wide range of normal, and wide range even within the same woman and pregnancy! Can be unusually high in
lupus type conditions, and abnormally low in ITP, or HELLP. (Discuss during pre-eclampsia labs).
Anemias: Iron deficiency anemia. Most common anemia. Lab work shows Low hct, low hgb, decreased MCV (as if the cells themselves
are "smaller and lighter". A peripheral smear may show "microcytic or hypochromic cells" cells smaller and paler than average.
The body cannot make hemoglobin without iron! Symptoms = raised pulse, fatigue, rough nails, "rough tongue", pale conjunctiva.
Elevated erythrocytes (baby red blood cells) may show the body is trying hard to build new blood cells this can be a good
sign of iron therapy success or it may rarely mean that red cells are being rapidly destroyed as in some form of hemolytic
anemia. Treatment = Iron supplements, plus vitamin C and perhaps vit B12.
Thalassemias anemia caused by a variant hemoglobin which throws all of our tests off! A racial variant, common in Mediterranean
and northern African countries. There is Alpha-thalassemia, beta-thalassemia and hemoglobin E. The condition may be minor,
causing a mild chronic microcytic anemia with hct in the low thirties. Can occasionally be severe. Some states test for this
with the PKU forms.
Sickle cell --- ditto thalassemia re symptoms and genetic distribution.
Acquired anemias lead poisoning, chronic exposure to some solvents. Lead exposure shows symptoms of anemia with small "stippled"
malformed cells. HIV, tumors etc
Macrocytic anemias elevated MCV (cells are large but have low mass). Megaloblastic anemia usually caused by folic acid
deficiency needs folate and b12. (A risk for vegetarians). Can also be caused by alcoholism or liver disease, or exposure
to some toxins. Folate need is increased in pregnancy; some people have a high enough intake, but dont absorb it well. (Folates
found in leafy greens, B12 in meat products)
Hemoconcentration high or rising hct and hgb is usually the first sign. One "panel" if suspicious of pre-eclampsia includes
-- hct/hgb, peripheral blood smear, BUN, Uric acid, protein, and SGOT.
Plasma proteins albumin: may fall. But sign not totally reliable.
Uric acid and urea nitrogen (BUN), rise
creatinine may rise (sign not as reliable)
Liver panel shows changes rising SGOT (above 72)
Urine test for protein catch is unreliable vaginal debris gives a false protein reading. If very concerned, do a 24 hour
clean catch or catheter. Albumin levels vary too greatly to be significant as predictors of pre-eclampsia, but repeated catches
may show a progression of the process.
Note: labs vary in their printed "normal ranges" and in their testing methods. You may see numbers slightly different from
these. These tests tell little by alone, and need to be put in context of the womans symptoms and other bloodwork and need
to be repeated to show a trend".
Ranges of normal female:
Albumin 3.2 to 4.1
Uric acid 3 to 5 (avg 4.1)
BUN 9 to 17 (lower in pregnancy. Even as low as 5 may still be normal)
Creatinine 0.6 to 1.3
SGOT 3 to 40
In one of the severe pre-eclampsia/eclampsia syndromes, liver functions deteriorate and hemolysis occurs. The red blood
cells become rapidly microcytic and deformed, hgb/hct drops, fibrinogen decreases, platelet destruction may occur, billirubin
may rise, and DIC may develop. HELPP is the acronym to remember and to seek! Hemolysis, Elevated Livers, Low Platelet. Or
a regional variation of the acronym: High BP, Elevated Liver, Low Platelet. Remember this condition can develop without alarmingly
Confusing bits: The normal range of platelets is quite large. A low number may mean nothing or it could mean mother has
gestational thrombocytopenia a poorly understood condition of little consequence. Or it could mean mom is terribly
sick. Its important to retest to see if the platelet levels or hct/hgb numbers are steady or if they are falling.
BUN and liver panels are most accurate in the fasting state so blood draw should occur first thing in the morning. Also
we no little about the range of normal in pregnancy, numbers can range throughout the day and vary with diet. Its hard to
"diagnose" anything on one test repeat tests will show you a trend. I doubt if anyone has sufficiently established the normal
range in pregnancy for some of the oddball tests like phosphorous and alkaline phosphate etc
Thrombocytopenia a drop in platelets. May be part of HELLP syndrome, but may be a normal variation of pregnancy.
gestational thrombocytopenia (old term "ideopathic thrombocytopenia"). Affects about 4% of pregnancies at levels around
130,000 to 150,000. Controversy over lower limit of normal, but GT generally stays above 100,000. Levels can rarely drop to
75,000 without likely risk to baby or mom. Bleeding rarely occurs at this level. Tests should be repeated to see if levels
are dropping or are stable, and pre-eclampsia panels should be done.
Immune Thrombocytopenia Purpura rare. 1/1000 to 3/1000. May be an auto-immune disorder. May show evidence of unusual bruising
or petechia. May be linked to Lupus, HIV, sepsis, DIC. Spontaneous bleeding usually doesnt occur if levels are above 20,000.
Treatment is a doctors problem not a midwifes!
ANTIPHOSPHOLIPID ANTIBODY SYNDROM This is a hyper-coagulable syndrome which may include thrombocytopenia and may be associated
with repeated early miscarriages. May be associated with Lupus and have similar symptoms and risks. The test may be called
a "lupus panel" or Lupus screen. Some doctors recommend aspirin therapy or heparin for women with APLA and a history of miscarriage.
There is little international consensus on normal glucose levels in pregnancy and little agreement on which tests should
be done to discover the occasional hidden diabetic. There is even less agreement on the concept of "gestational diabetes"
as separate from diabetes mellitus -- and whether or how this should be diagnosed, tested for, or treated. The numbers used
to "diagnose" change constantly and different groups use very different numbers. I personally lean to the conclusions of the
Cochrane Database that gestational diabetes is poorly researched and there is no evidence that mildly elevated glucose levels
are detrimental in pregnancy, or that treatment is effective at controlling macrosomia, or that there is any risk to the baby
other than macrosomia (which we cant affect with diet restriction). You will have to use your own judgment about whether and
how to screen for "gestational diabetes" taking into consideration the standard of care in your community. I personally think
a reasonable approach is to screen women at high risk, and women with any s/s of diabetes and that post-prandial blood sugars
are a reasonable test for DM.
I will list a few common tests and cut-off levels:
50 gram 3 hr glucose screen:
50 gram 3 hr glucose scrn:
Carter and Coustan
ADA 75 gm 2 hour test;
fasting < 95
1 hour < 190
1 hour < 180
1 hour < 200
2 hours < 165
2 hours < 155
2 hours < 140.
3 hours < 145
3 hours < 140.
It probably is irrelevant whether or not moms "carbo-load" for several days before the test. The test itself is poorly
reproducible. A mom who fails today may easily pass tomorrow. I think the whole concept of gestational diabetes is a deeply
confused "tempest in a teapot", which will brew for a few more years and then disappear just like 24 hour urinary estriol
assays did 20 years ago. We will eventually find an accurate and reproducible test for hidden diabetes and we will better
understand the effects of normal renal intolerance in pregnancy.
Glucose spilled so commonly in pregnancy as to be almost irrelevant as a screen for diabetes
Protein trace to one plus is common almost expected. Difficult to get a clean catch. The albuminuria associated with
PIH is usually a very late symptom may not occur until the woman is very sick.
Ketones product of "starvation". Illness, fever, lack of food, dehydration, diabetes (a woman with Diabetes Miletus,
may spill both Glucose and ketones in the same sample)
Leukocytes commonly due to a contaminate. If high may indicate a urinary tract infection especially if
blood is also found. Vaginal, cervical, or rectal blood is a frequent contaminant.
Ph one of the pretty much irrelevant things we do.
(Routine dipsticks arent particularly helpful and I predict that in twenty years people will have forgotten all about them!)
VERY WEIRD THINGS!
Uremia: may be a result of severe platelet loss.
A sign of von Willebrand (the disease of the month! Another poorly understood and overly diagnosed syndrome which has caught
the public eye.
DIC disseminated intravascular coagulation We are unlikely to discover this in bloodwork. Mother will probably be in hospital
long before. Platelets will usually be decreased (50 to 75), and serum fibrinogen may be decreased. Thrombin time will be
A GOOD SCREEN FOR SUSPECTED BLEEDING DISORDERS -- hematocrit, platelet count, PT/aPTT, fibrinogen, D-Dimer and euglobulin
clot lysis time.
AN OLD STANDBY CENTURIES-OLD TEST FOR BLEEDING DISORDERS Poke moms finger with a sterile needle, pin or lancet. Put several
drops of blood onto a microscope slide or the flat bottom of a drinking glass. Wait 1 minute. Draw your pin/needle/lancet
through the blood drop. Repeat every 30 seconds. Note time when blood firms up and clots on both sides of the "trail" made
by your needle. Normal blood will clot in less than 5 minutes and many pregnant women will clot within two!
George JN, Woolf SH, Raskob GE, Wasser JS, Aledort LM, Ballem PJ, Blanchette VS, Bussel JB, Cines, DB, Kelton JG, Lichtin
AE, McMillan R, Okerbloom JA, Regan DH, Warrier I: Diagnosis and treatment of idiopathic thrombocytopenic purpura:
Recommendations of the American Society of Hematology. Ann Intern Med 1997;126:319-326.
George JN, Shattil SJ. The clinical importance of acquired abnormalities of platelet function. New Engld J
Thomas G. DeLoughery OHSU hematology website.
Obstetrics; normal and problem pregnancies gabbe, niebyl, simpson (3rd edition, 1999)
Bensons Handbook of Obstetrics and Gynecology
An introduction to the Principles of Disease Walter
A Textbook of Clinical Pathology -- Miller
Oxygen -- is it the best thing for newborn resucitation?
(gail hart, Midwife Updates Conference Aug 2002)
Things we know about oxygen:
- Necessary for life
- Available in air at 21%
- All normal humans are designed to function in 21% O2
- Humans suffer harm if blood oxygen drops below normal
- Humans suffer harm at O2 levels in excess of room air
- Toxic if given at levels higher than needed.
Things we dont know about oxygen:
- How delicate is neonatal balance?
- How easily harmed are neonates, even during short term O2 exposure?
- Is pure O2 the best way the most efficient way -- to get oxygen into a baby?
A question we are just beginning to ask and researchers to answer:
- Is room air superior to oxygen for resuscitation of asphyxiated newborns?
Neonatal physiology: What makes a baby draw breath?
- Reflex (in utero breathing)
- Oxygen deprivation with resulting rise in CO2. (meconium aspiration syndrome)
- Birth (above reflexes plus deprivation of placenta, plus pressure, temperature, air, etc)
Three physiologic states in ballance during birth of fetus/newborn;
- Fetus blood levels =slightly more CO2 than O2, little stimulus to respiration
- Birth moments blood levels= CO2 rises, O2 drops, strong stimulus to breathe
- Asphyxia high levels of CO2, low O2 = overcomes cerebral-centered breathing reflex = apnea
O2 relatively new.
- the first resuscitation gas was Co2 found to stimulate deep and rapid breathing in mildly asphyxiated infants
less effective in severe aspxia.
- Mixtures of CO2 and O2 were proposed and used until at least the 1970s.
- Oxygen was felt to be superior to CO2 was adopted with little question, in spite of the example of retrolental-fibroplasia.
- O2 only recently studied against room air (early reports fuel spate of research)
Common observation: the asphyxiated baby seems to responds well to O2 resuscitation shows color and tone improvement,
but "will not breathe" or seems slow to begin spontaneous breaths. Real life cure: wean the oxygen. Unknown: was spontaneous
respiration delayed by O2? Were there harmful effects?
Copywrite gail hart, midwiferyeducation.org
More things we now know about O2
- saturation with oxygen reduces breathing efforts in ALL airbreathing creatures, and newborns are more susceptible
- resuscitation with O2 shows marked delay in respiration compared to resuscitation with room air.
- newborns exposed to O2 FOR EVEN SHORT DURATION (minutes) show changes in eye development (rods extremely
- chemical receptors markers for stress show -- for weeks, maybe longer
research points now known after a decade of study of room air vrs O2 for resucitation;
- There are no apparent clinical disadvantages in using room air for ventilation of asphyxiated neonates rather
than 100% oxygen.
- Room Air Resuscitated (RAR) infants recover more quickly
- higher Apgar scores at 1, 5, and 10 minutes in RAR infants
- time to first cry, and sustained pattern of respiration less in RAR infants
(Pediatrics 2001 Apr; 107(4):642-7 Resuscitation with room air instead of 100% oxygen prevents oxidative
stress in moderately asphyxiated term neonates.
- Three clinical studies have established that normal ventilation is delayed after oxygen resuscitation.
- Oxidative stress is augmented for several weeks in infants exposed to oxygen at birth -- the long-term implications
of these observations remain unclear. (Semin Neonatol 2001 Jun;6(3):233-9) Resuscitation of newborn infants with room air
or oxygen. Saugstad OD.
- No significant differences in the effectiveness of either gas sources or in the final outcome have been found.
- RAR required a shorter time of positive pressure ventilation to attain a spontaneous pattern of respiration.
- The OxR group showed hyperoxaemia during resuscitation, which was positively correlated with increased GSSG
- Significant oxidative stress was found in the OxR group at 28 days of postnatal life when compared
with normal control infants and the RAR group (Biol Neonate 2001;79(3-4):261-7 Six years of experience with the use of
room air for the resuscitation of asphyxiated newly born term infants.
- To reduce oxidative stress, reoxygenation with low oxygen concentrations, even room air, might be beneficial.
- Increased oxidative stress might have long-term effects on brain growth and development
- there is evidence indicating that exposure to 100% oxygen after birth for only a few minutes might have long-term
effects. (Biol Neonate 2001;79(3-4):258-60 Resuscitation of the asphyxic newborn infant: new insight leads to new therapeutic
possibilities. Saugstad OD
Official recommendations to use 100% O2 have not yet changed but probably will soon. Unlicensed midwives who
are prohibited from carrying O2, may be in a better position to adapt to RAR, since mouth-to-mouth is a very efficient and
effective way to resuscitate with room air!
Copyright gail hart, midwiferyeducation.org
: Biol Neonate 2001;79(3-4):258-60
Resuscitation of the asphyxic newborn infant: new insight leads to new therapeutic possibilities.
Department of Pediatric Research, The National Hospital, University of Oslo, Norway.
Biol Neonate 2001;79(3-4):261-7
Six years of experience with the use of room air for the resuscitation of asphyxiated newly born term infants.
M, Asensi M, Sastre J, Garcia-Sala F, Vina J.
Pediatr Res 1993 Dec;34(6):809-12
Resuscitation of asphyxic newborn infants with room air or 100% oxygen.
Ramji S, Ahuja S, Thirupuram S, Rootwelt
T, Rooth G, Saugstad OD.
Pediatrics 2001 Apr;107(4):642-7
Resuscitation with room air instead of 100% oxygen prevents oxidative stress in moderately asphyxiated term neonates.
M, Asensi M, Sastre J, Garcia-Sala F, Pallardo FV, Vina J.
Semin Neonatol 2001 Jun;6(3):233-9
Resuscitation of newborn infants with room air or oxygen.
THE ROLE OF INFECTION
Certain common infections are suspiciously associated with Premature Rupture of Membranes and/or with Preterm birth especially
Bacterial Vaginosis (Garnerella) and GBBS. The World Health Organization recently concluded that treating BV with antibiotics
reduces preterm delivery. " . There are many ways other than antibiotics to treat infections or natural overgrowths like gardnerella,
and strep which often accompany BV. Reducing these organisms may reduce the incidence of preterm birth AS WELL AS the incidence
of neonatal infections. In this case, "An ounce of prevention is definitely worth a pound of cure".
GENITO-URINARY TRACT HEALTH
"VAGINAL FLORACULTURE ORGANIC GARDENING OR CHEMICAL WARFARE?"
Like it or not, we are always growing something in our vaginas good, bad, and indifferent.
The human vagina is never sterile -- indeed it cannot be made sterile -- but we CAN cultivate the organisms which make
us healthy, by learning their natural growth patterns and how we can improve their preferred growing conditions. Think of
the vagina as being like a garden, nourishing both flowers and weeds. Some gardeners use poisons to control weeds a chemical
warfare which can toxify the ground and which will usually need many repetitions. Modern organic gardeners use a different
method they learn the natural balance in their gardens, and change the soil to benefit the plants they wish to grow, and to
make it more difficult for weeds to take root. We can adapt this thinking to our own "internal gardens". our own "vaginal
horticulture": encouraging the good guys to be the dominant group in the natural vaginal flora and letting THEM get rid of
the bad guys for us! A healthy vaginal flora can even fight and prevent group b strep from colonizing and we would all like
to see more "negative strep" cultures!
The good news is we don't need to become microbiologists to do this! The other good news is that "vaginal horticulture"
is relatively simple to learn and easy to do.
Of the many organisms which love to live within us -many of the "friendly ones" are inimical to those we would prefer to
avoid - and most of these "good guys" grow best under certain conditions conditions which the" bad guys" dislike.
The good guys are lactobacillus -- the bad guys are staph, strep a and b, yeast, "BV" trich etc, and where you find one,
you often find the others. As a rough rule of thumb, the good guys like a ph of under 5 ---the bad buys prefer a more alkaline
environment. Lactobacilli not only prefer an acidic environment, but they secrete hydrogen peroxide which makes the vagina
even MORE acidic and make it harder for the bad guys to grow. So an organic gardener would advise us to make the vagina more
acidic and plant more lactobacilli to control an over-growth of bacteria, GBBS, and yeasts -- or an invasion of trich. Another
benefit of lactobacilli is they exert an antibiotic effect on GBBS! .
PREPARING THE GROUND -- One of the simplest ways to change vaginal pH (making the vagina more acidic) is to douche with a
mild vinegar solution 1 to 3 tbls per pint of warm water. The good guys the lactobacilli will grow best and faster with this
little push into an acidic pH.
A pregnant women should do "jug-douching" instead of regular douching. (Jug douche: the woman sits over the toilet or in
a bathtub and pour the liquid over her vulval/vaginal area, "sweeping" it up inside with her hand. Pregnant women should NEVER
use a douche bag or pressurized bag because of the rare danger of air-embolism). Note: this traditional treatment is very
effective for yeast infections and BV. Do 2 to 3 times daily for a week, then 2X a week, then 1X a week for a few weeks. Then
maybe never again!
Another excellent method is to use Hydrogen Peroxide. This simple cleanser directly fights the bad guys, at the same time
as it "nourishes" the good guys! This is a simple recipe: instill three tablespoons of 3% hydrogen peroxide into the vagina.
Leave for 3 minutes and drain.
PLANTING THE SEEDS
Now, the second step after making a healthy pH environment for the good guys is to plant some of them!
It can be done directly by supplying colonies of lactobacilli to the vagina. There are commercial preparations of lactobillus
acidophilis, and some advise douching or injecting these liquids. But commercial yogurt has been studied under both clinical
and laboratory conditions, and is inexpensive and easily found. Used as a sort of intravaginal cream it can cause some very
impressive changes both in pH and floraculture. (heres a small but rather typical lab study:
PMID: 8382424 1: Jpn J Antibiot 1995 Mar;48(3):432-6
[Ecological treatment of bacterial vaginosis]
Chimura T, Funayama T, Murayama K, Numazaki M.
Ecological treatment of bacterial vaginosis with a Lactobacillus (yoghurt) was studied, and the following results were
obtained. 1. A total of 11 women aged 20 to 60 with bacterial vaginosis were treated with intravaginal application of 5 ml
of commercial yoghurt (pH 4.3 +/- 0.2). The effect of the treatment was evaluated 3 days after administration by monitoring
the vaginal discharge and bacteriological assessment. 2. The clinical improvement was evaluated and the decreases of vaginal
discharge and vaginal redness were significant and vaginal pH was lowered significantly also (P < 0.05). In the vaginal
discharge 29 strains of bacteria were detected, but 3 days after administration, all 14 strains of Gram-negative bacteria
disappeared. As for the overall bacteriological effects, 6/11 cases (54.5%) were eradicated. 3 cases were partly eradicated,
2 cases were replaced. These findings indicated that the Lactobacillus therapy was effective in both clinical and bacteriological
Notice that after three days, ALL 14 STRAINS OF GRAM NEGATIVE BACTERIA DISAPEARED! Remember that Groub B Strep IS A GRAM
A few tablespoons of yogurt can be used as a douche, or a cream, or smeared over a tampon and inserted once a day for 6
hours. Yogurt can treat BV as effectively as antibiotics.
Even more elegantly, we can seed the intestinal tract! Strep and E-Coli and other bad guys hitchhike from the intestinal
system to the genital system (its just a fact of life)! The good guys can do the same! Yogurt which contains live cultures
of lactobacili directly seeds the intestine and eventually these bacilli move to the vagina.. In several studies women with
recurrent yeast infection, and/or BV, decreased or ended their patterns of infection and grew healthy vaginal flora.
Be advised though that commercial yogurt varies widely in type, strains, and amount of live cultures. Some contain little
few live cultures -- some contain thriving, vigorous colonies. A woman who says she "eats yogurt" might, or might not have
the benefit of these strains and is one reason for the varied results in studies..
Maintaining a healthy floriculture of lactobacilli might lower the incidence of strep carriage, which in turn may lower
the risk of preterm labor and newborn sepsis. Midwives who are doing universal screening for GBS protocols, might find more
of their clients "passing the test: with negative cultures, if they encourage them to eat yogurt or kefir frequently, and
consider doing a little bit of "organic horticulture in the "Garden of Delights".
BUT WHAT IF THE WOMAN IS STILL GBS POSITIVE?
Well, then maybe its time for a touch of chemical warfare after all! Giving antibiotics in labor is a common routine for
GBBS positive women to protect their babies from strep, but its not the only approach. Since the mid 1980s researchers have
been investigating the effectiveness of a germicidal wash or rinse in labor. This years Feb issue of the Journal of Maternal
and Fetal Medicine shows that a "wash" or "flush" with .2% solution of chlorhexidrine protects the baby against strep "with
the same effectiveness as ampicillin", while also reducing e. coli infections! (see our 'Alternative methods to reduce strep"
Its too soon to tell what will be the "final answer" about what to do for women with positive strep tests in pregnancy,
but perhaps chemical washings will be part of that answer.
(note: all postings on this page are copywrited to the authors)