Hypertensive disorders in pregnancy (HDP) are a common cause of maternal and infant health problems and death. HDP include gestational hypertension, preeclampsia, and eclampsia. Risk factors include being young, older than 35, having previous HDP, obesity, diabetes, or kidney disease. Symptoms of severe preeclampsia include headaches, vision issues, low platelets, elevated liver enzymes, pain in the upper right abdomen, HELLP syndrome, or high creatinine. All pregnant people should take calcium and those at higher risk may benefit from low-dose aspirin. HDP requires frequent monitoring, control of blood pressure, delivery by 38 weeks for gestational hypertension or earlier for pre
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Lung Cancer: Artificial Intelligence, Synergetics, Complex System Analysis, S...Oleg Kshivets
RESULTS: Overall life span (LS) was 2252.1±1742.5 days and cumulative 5-year survival (5YS) reached 73.2%, 10 years – 64.8%, 20 years – 42.5%. 513 LCP lived more than 5 years (LS=3124.6±1525.6 days), 148 LCP – more than 10 years (LS=5054.4±1504.1 days).199 LCP died because of LC (LS=562.7±374.5 days). 5YS of LCP after bi/lobectomies was significantly superior in comparison with LCP after pneumonectomies (78.1% vs.63.7%, P=0.00001 by log-rank test). AT significantly improved 5YS (66.3% vs. 34.8%) (P=0.00000 by log-rank test) only for LCP with N1-2. Cox modeling displayed that 5YS of LCP significantly depended on: phase transition (PT) early-invasive LC in terms of synergetics, PT N0—N12, cell ratio factors (ratio between cancer cells- CC and blood cells subpopulations), G1-3, histology, glucose, AT, blood cell circuit, prothrombin index, heparin tolerance, recalcification time (P=0.000-0.038). Neural networks, genetic algorithm selection and bootstrap simulation revealed relationships between 5YS and PT early-invasive LC (rank=1), PT N0—N12 (rank=2), thrombocytes/CC (3), erythrocytes/CC (4), eosinophils/CC (5), healthy cells/CC (6), lymphocytes/CC (7), segmented neutrophils/CC (8), stick neutrophils/CC (9), monocytes/CC (10); leucocytes/CC (11). Correct prediction of 5YS was 100% by neural networks computing (area under ROC curve=1.0; error=0.0).
CONCLUSIONS: 5YS of LCP after radical procedures significantly depended on: 1) PT early-invasive cancer; 2) PT N0--N12; 3) cell ratio factors; 4) blood cell circuit; 5) biochemical factors; 6) hemostasis system; 7) AT; 8) LC characteristics; 9) LC cell dynamics; 10) surgery type: lobectomy/pneumonectomy; 11) anthropometric data. Optimal diagnosis and treatment strategies for LC are: 1) screening and early detection of LC; 2) availability of experienced thoracic surgeons because of complexity of radical procedures; 3) aggressive en block surgery and adequate lymph node dissection for completeness; 4) precise prediction; 5) adjuvant chemoimmunoradiotherapy for LCP with unfavorable prognosis.
Report Back from SGO 2024: What’s the Latest in Cervical Cancer?bkling
Are you curious about what’s new in cervical cancer research or unsure what the findings mean? Join Dr. Emily Ko, a gynecologic oncologist at Penn Medicine, to learn about the latest updates from the Society of Gynecologic Oncology (SGO) 2024 Annual Meeting on Women’s Cancer. Dr. Ko will discuss what the research presented at the conference means for you and answer your questions about the new developments.
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TEST BANK for Operations Management, 14th Edition by William J. Stevenson, Verified Chapters 1 - 19, Complete Newest Version.pdf
TEST BANK for Operations Management, 14th Edition by William J. Stevenson, Verified Chapters 1 - 19, Complete Newest Version.pdf
Pulmonary Thromboembolism - etilogy, types, medical- Surgical and nursing man...VarunMahajani
Disruption of blood supply to lung alveoli due to blockage of one or more pulmonary blood vessels is called as Pulmonary thromboembolism. In this presentation we will discuss its causes, types and its management in depth.
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MANAGEMENT OF ATRIOVENTRICULAR CONDUCTION BLOCK.pdfJim Jacob Roy
Cardiac conduction defects can occur due to various causes.
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The prostate is an exocrine gland of the male mammalian reproductive system
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2. Intro
• Hypertensive disorders in pregnancy (HDP) are a common cause of
maternal and perinatal morbidity and mortality.
• HDP are the commonest direct cause of maternal deaths in South Africa.
• Therefore identifying women at risk, eliciting clinical signs, providing
immediate emergency medical care in cases with acute severe
hypertension or eclampsia and timely stabilisation and referral will
prevent complications.
• There is an association between hypertensive disorders in pregnancy and
antenatal depressive and anxiety symptoms.
• Nulliparous women are especially at high risk
3. DEFINITIONS
Hypertension
• A systolic blood pressure ≥ 140 mmHg but <160 mmHg on two occasions, taken
at least 4 hours apart, AND/OR a diastolic blood pressure ≥ 90 mmHg but < 110
mmHg on two occasions, taken at least 4 hours apart.
• A single systolic BP ≥ 160 mmHg AND/OR a diastolic BP ≥ 110 mmHg is also
diagnostic of HDP.
• This is called acute severe hypertension and is a medical emergency. Such levels
of blood pressure requires urgent management and referral.
Significant proteinuria
• The presence of ≥2+ proteinuria on a visual test strip (dipstick) in a clean catch
urine specimen on two occasions, at least 4 hours apart.
• Screening for proteinuria using visual urinary test strips / dipsticks must be done
at each routine antenatal visit or admission to hospital.
4. CLASSIFICATION
Chronic Hypertension
• Hypertension that is present before 20 weeks of pregnancy. It usually predates pregnancy (the woman
was taking antihypertensive medication/s prior to the pregnancy). Patients with chronic hypertension
are at increased risk for super-imposed pre-eclampsia and therefore should be seen more frequently
than the standard practice during the antenatal period.
Gestational Hypertension
• New onset of hypertension presenting for the first time after 20 weeks of pregnancy without significant
proteinuria and with normal biochemical and haematological parameters. Gestational hypertension
usually occurs after the 34th week of pregnancy and is usually not associated with intra-uterine fetal
growth restriction. About a quarter of women with gestational hypertension will develop superimposed
pre-eclampsia, particularly those that present with gestational hypertension <34 weeks.
Pre-eclampsia
• Hypertension associated with significant proteinuria occurring for the first time after 20 weeks of
pregnancy. The diagnosis of pre-eclampsia can also made in the absence of proteinuria but there must
be evidence of maternal organ damage such as acute kidney injury, liver dysfunction,
thrombocytopenia or fetal intra-uterine growth restriction.
• Pre-eclampsia may also occur for the first time during the intrapartum or in the early post-partum
period.
5. Maternal features of severe hypertensive
disease
• Acute severe hypertension
• New-onset severe headache unresponsive to medication.
• Visual disturbances.
• Thrombocytopenia (platelet count <100 000/μL).
• Impaired liver function (ALT or AST >40 IU/L).
• Severe persistent right upper quadrant or epigastric pain.
• HELLP syndrome (platelets <100 000 and AST >70 μl and LDH >600 μl).
• Serum creatinine ≥120 micromol/L.
• Pulmonary oedema.
6. Maternal features of severe hypertensive
disease
Eclampsia
• Generalised tonic-clonic seizures after 20 weeks of pregnancy and within 7
days after delivery, associated with hypertension and proteinuria.
• Note that pregnant women with epilepsy are more likely to develop pre-
eclampsia.
• Therefore, epileptics who manifest with new onset hypertension and seizures
must be managed as eclampsia.
HELLP Syndrome
• This refers to the presence of haemolysis, elevated liver enzymes and low
platelets, in association with hypertension and proteinuria.
• The HELLP syndrome is a variant of pre-eclampsia; it is not a separate disorder
but a serious disorder and requires specialist management.
7. MEASUREMENT OF BLOOD PRESSURE (BP)
Measure BP with the patient preferably in a relaxed sitting position with both
feet flat on the ground, keeping the arm at the level of the heart.
Measure BP in each arm and use the arm in which the BP is higher for all future
measurements.
Measure the BP with a device validated for use in pregnancy.
•Use the correct cuff size (length of 1.5 times the circumference of the arm)
•Use “obese cuff” (15x33 cm), if the middle upper arm circumference is > 33 cm
•Patient may sit or lie on her side – never flat on her back!
•Cuff should be on the level of the heart during measurement
•Measure the diastolic blood pressure at the point where the sounds disappear
(Korotkoff phase five). In patients where the sounds do not disappear, use the
point of muffling (Korotkoff phase four).
8. WOMEN AT RISK FOR THE DEVELOPMENT OF
PRE-ECLAMPSIA
ANY pregnant women CAN develop pre-eclampsia.
Those most at risk are antenatal attendees who have at least one of the features below:
• Primigravidae, in particular teenagers
• Age 35 years and above
• Previous pregnancy complicated by an HDP
• Previous abruptio placentae or unexplained intra-uterine death
• Multiple pregnancies
• Medical complications such as chronic hypertension, renal disorders, diabetes,
connective tissue disorders or antiphospholipid syndrome
• Obesity
• Women who develop oedema in the mid trimester or have excessive or rapid weight
gain
9. ACTIONS TO TAKE IF THERE IS A RISE IN
BLOOD PRESSURE
• If the patient still has normal blood pressure, but there was a rise in
systolic or diastolic of 30 mmHg or 15 mmHg respectively since
booking
• Ensure she is given an appointment to return in three to five days to
repeat blood pressure measurement.
• Also, ensure that the base hospital is contacted with respect to
further management
10. MEASURES TO PREVENT PRE-ECLAMPSIA
The following may help to reduce the chance of a women getting pre-
eclampsia:
• Calcium supplementation to all pregnant women – the minimal dose is
500mgm daily but ideally I gram elemental calcium in divided doses daily,
e.g. calcium carbonate (168 mg) two tablets orally, three times daily with
food.
• Calcium tablets is best taken, four hours before or after iron supplements.
• Low dose aspirin (75-150mgms; or two junior aspirin tablets) taken at
bedtime (at night – to prevent gastric irritation) from the 12th week of
pregnancy until 34 weeks plus 6 days gestational age ( if the first visit is at
13-16 weeks gestation , low dose aspirin can still be used.
• Normally prescribed for those who are at risk of developing PE.
11. HOW TO MANAGE HYPERTENSIVE DISORDERS
IN PREGNANCY
GESTATIONAL HYPERTENSION
• If gestational hypertension is diagnosed at a community clinic, the advice of an experienced doctor should be obtained
• To establish if any immediate treatment and investigations are required and as to the timing of referral.
• Check for proteinuria, oedema and increased weight gain
• Ask again about family history of hypertension, history of hypertension in previous pregnancy, or index pregnancy
• At the district hospital all patients should be re-assessed to confirm the diagnosis, or to see if pre-eclampsia has developed in the
meantime.
If the diagnosis of gestational hypertension is confirmed:
• Do an ultrasound assessment of the foetus in respect of gestational age or estimated fetal weight (if no previous dating ultrasound
available).
• Test for fetal well-being with an umbilical artery Doppler test (if available).
• If the baby is viable (≥28 weeks), an antenatal CTG should also be carried out and fetal movement charts initiated
• If the dipstick tests for proteinuria are doubtful, do a 24-hour Urine Protein collection or a Urinary Protein-Creatinine Ratio to exclude
pre-eclampsia.
• The high blood pressure should be controlled at values of 135-140 mmHg systolic and 85-90 mmHg diastolic; lowering the high blood
pressure further than this may compromise the baby.
• If needed, start anti-hypertensive treatment with methyldopa 250mg - 500 mg eight hourly, orally.
• If the patient is <38 weeks gestation, then outpatient management can occur at the high risk antenatal clinic on a weekly basis and she
should be seen by the same experienced doctor or midwife at each visit.
• Deliver patients with gestational hypertension once they reach 38 weeks of gestation. Delivery can be delayed until 39 weeks, if assessed
by a specialist.
12. Non-severe Pre-eclampsia
Once a patient as diagnosed as having stable non-severe pre-eclampsia:
• Prescribe methyldopa 500 mg eight hourly and phone the district hospital for referral. Referral should be the same
day, especially if the patient is > 34 weeks gestation
• At the district hospital, all patients should have an ultrasound assessment of the foetus in respect of gestational age
or estimated fetal weight (if no previous dating scan done)
• Test for fetal well-being with an umbilical artery Doppler test (if available)
• if the baby is viable (≥ 28 weeks), an antenatal CTG should also be carried out and fetal movement charts started.
• Confirm the diagnosis of non-severe pre-eclampsia with a 24 hour urine protein collection or a urine protein-
creatinine ratio, except if there is persistent proteinuria ≥1+ on the dipsticks
• With confirmed significant proteinuria (≥0.3 g/24 hour or persistent ≥1+), do a platelet count, serum creatinine,uric
acid and liver function tests
• If the patient remains stable, manage as an in-patient until 36 completed weeks, when delivery (induction of
labour) is strongly advised.
In-patient management if < 34 weeks includes:-
• Weekly urea, creatinine, liver function tests, platelet counts and twice daily CTGs.
• Remember to keep plotting the growth of the baby on the antenatal card every two weeks.
• Outpatient management can be individualised for the very reliable patient who lives close by or as transport
facilities at home
13. PRE-ECLAMPSIA WITH SEVERE FEATURES OR
IMMINENT ECLAMPSIA
• The patient should be stabilised and have immediate priority transfer to a specialist hospital.
• Insert a urinary Foley catheter and plot urine output.
• Insert an IV line and give RESTRICTED IV fluid – use a 200 mL Ringers Lactate solution ensuring against fluid
overload. Give 80 mL per hour.
• Initiate magnesium sulphate (MgS04) prophylaxis against the development of seizures.
• Dilute four ampoules (four grams) in 200 mL Ringer Lactate and infuse over 20 minutes. Also give five grams
MgS04 by deep intramuscular injection in each buttock (a total dose of 14 g).
• Give 500mg alpha methyl dopa orally stat.
• If there is acute severe hypertension (blood pressure is ≥160 mm systolic or ≥110 mm diastolic) give quick acting
nifedipine
• 10 mg orally to swallow (not buccally, not sublingually).
• Repeat blood pressure measurement every 30 minutes (half hourly) until the ambulance arrives; a nurse MUST
remain with the patient.
• If the blood pressure is still ≥160 mm systolic or ≥110 mm diastolic 30 minutes after nifedipine, a second dose of
nifedipine can be given.
• Inform Emergency Medical Services and the specialist hospital of the urgency for referral. Inform the clinic
manager of the case and any transport difficulties.
• Ensure that the patient is accompanied by an experienced nurse or well-trained paramedic to ensure that the
MgS04 regimen is continued, that the patient is kept on her side
14. MANAGEMENT OF PRE-ECLAMPSIA WITH
SEVERE FEATURES
Make all efforts to transfer to specialist care immediately, as the mother and or baby
may need high care or ICU during the course of the disease.
If transfer is not possible (e.g. mother very close to delivery) manage as follows:
• Blood pressure levels must be kept below 160 mmHg systolic and 110 mmHg diastolic
with the use of quick acting nifedipine 10 mg orally
• If there is still acute severe hypertension after three doses of quick acting nifedipine,
the patient needs intravenous labetalol to control her high blood pressure. This should
preferably take place within a high care setting with invasive blood pressure
monitoring.
• The dose of labetolol is 20 mg IV, If there is still acute severe hypertension after 10
minutes give a further 40 mg labetolol IV be aware of fluid balance and check the
pulse rate, respiratory rate and chest examination for signs of
• Pulmonary edema, and urine output at each time/period of observation
• Be aware of a pre-eclamptic patient with respiratory rate >24/minute- examine the
lungs carefully for pulmonary oedema
15. MANAGEMENT OF PRE-ECLAMPSIA WITH
SEVERE FEATURES
Continue observations following delivery in a high care area or designate a bed in
which regular observations are done
Blood pressure, pulse rate, respiratory rate, chest examination and fluid balance – use
a colour coded observation chart/early warning chart). Observations should be done:
• Half hourly for two hours
• Then hourly for four hours
• Then two hourly for eight hours
• Then four hourly
• MgSO4 should be continued for up to 24 hours after delivery.
• The best mode of delivery for severe pre-eclampsia and eclampsia is vaginally
• Anaesthesia for severe pre-eclampsia is complicated and should best be done by a
specialist anaesthetist.
17. POSTPARTUM AND POSTNATAL CARE
• Women who develop threatening signs or eclampsia for the first time after delivery need referral to
specialist care after stabilisation.
• Use MgS04 as above.
• Patients with hypertension during pregnancy need to stay in hospital after delivery until the blood
pressure is well controlled (< 150/100 mmHg).
• Use quick acting nifedipine 10 mg orally as needed to manage acute severe hypertensive spikes in the
postpartum period.
Management of the asymptomatic patient who had isolated high blood pressures during labour only
(no hypertension in the antenatal period and no significant proteinuria)
• Observe post-partum until the blood pressure settles (usually one to three days).
• If diastolic blood pressure repeatedly raised ≥110 mmHg OR the systolic blood pressure rises to >160
mmHg start on maintenance anti-hypertensive medication.
• If the systolic blood pressure is 140-150 mmHg and/or the diastolic blood pressure is 90-100 mmHg,
treatment is not necessary.
• Observe patient for 24-48 hours and follow up at a district health service postnatal clinic within three
days.
• The patient should return for care if she experiences persistent dizziness or headaches.
18. Patients who had gestational hypertension
• Preferably, stop the methyldopa after delivery (as it can exacerbate post-partum
depression) and switch to other anti-hypertensive medication if needed.
• Confirm that the blood pressure is stable for 24-hours before discharge.
• Follow up at a district health service post-partum clinic within three days and again at
six weeks post-partum, to evaluate the need for continuation of medication.
• If maintenance therapy is needed, provide a prescription for four weeks with
discharge so that the client is without medication for two weeks when followed up at
the six weeks visit.
• A good assessment can then be made as to whether she will need further workup for
hypertension and chronic medication.
• If she was discharged on more than one drug to control the blood pressure, rather do
a step-wise withdrawal of one drug at a time with more regular follow up, preferably
at a specialist high-risk clinic.
• The patient should return for care if she experiences persistent dizziness or headaches
19. Patients with chronic hypertension
• Can be changed to the drugs they used before pregnancy (if it is safe to use during lactation) and
discharged as soon as they are stable.
• They can be followed up after three days and again after 6 weeks at the district health service
postnatal clinic.
• Follow the advice from the specialist centre (if transfer was not possible before delivery).
• The patient should be managed with anti-hypertensive medication after delivery and kept in hospital
until blood pressure is controlled for 72-hours and all the biochemistry / organ systems are back to
normal.
• Follow up three days after discharge and again at six weeks post- partum at a high-risk postnatal
clinic, to evaluate the need for continuation of medication.
• If there is good control with one drug only, provide a prescription for four weeks with discharge
• A good assessment can then be made as to whether she will need further workup.
• If she was discharged on more than one drug to control the blood pressure, rather do a step-wise
withdrawal of one drug at a time with more regular follow up at a high-risk clinic.
• The patient should return for care immediately if she experiences persistent dizziness or headaches.
20. CHOICE OF DRUGS FOR POST-PARTUM
HYPERTENSION
• Use the cheapest effective drug available at all levels of care and to adhere to
the guidelines on hypertension outside of pregnancy, as the clients will be
managed after the puerperium according to those guidelines.
• A first choice would thus be an ACE inhibitor (enalapril) at a dose of 5 mg in
the morning, can be increased to 20 mg daily. (If the patient’s renal function is
within normal limits.)
• When a second drug is needed, add a calcium channel blocker (amlodipine) 5
mg daily and increase to 10 mg daily when needed.
• When a third drug is needed, use a beta blocker (atenolol) 50 mg daily. Can be
increased to 100 mg daily if needed.
• Hydrochlorothiazide can be started as a first line drug in cases of chronic
hypertension (12.5 mg daily, increase to 25 mg daily when needed).
• As with the prescription of any drug, check for contra-indications and possible
drug interactions before prescription.
21. Most frequent causes of maternal deaths
associated with hypertensive disorders
Cerebral haemorrhage and severe cerebral oedema usually due to acute severe uncontrolled
high blood pressure.
• Therefore lowering of very high blood pressure requires drugs which act fairly rapidly
• Lower high blood pressure using quick acting Nifedipine tablets or intravenous Labetalol in
such circumstances.
• Methyldopa should be used at the same time but its onset is variable and may take 12 to 24
hours to act
• Note that Magnesium Sulphate is not antihypertensive, therefore rapid acting agents must be
used to lower very high blood pressure over two hours to stabilise prior to transfer.
Pulmonary edema which may be due to iatrogenic fluid overload, therefore do not overload
patients with IV fluids and closely monitor urine output and fluid intake.
• Be aware of abruptio placentae and liver rupture in cases pre-eclampsia with severe
features.
• Renal impairment and acute renal failure may occur following delivery therefore fluid balance
monitoring is essential.
White Coat Hypertension
This refers to hypertension that is present from early pregnancy when measured at a clinical examination but is normal at home. It conveys an increased risk for pre-eclampsia.
Significant proteinuria without hypertension
Can be chronic (prior to pregnancy) or new (which may be the first sign of the development pre-eclampsia).
Women with risk factors should be managed at a district hospital, however if they develop spikes severe hypertension, abnormal liver function tests or fetal growth restriction then consideration must be given to referral to the regional hospital for specialist care
If a woman with gestational hypertension develops proteinuria, increasing weight gain, blood tests showing organ involvement ( raised serum creatinine , raised uric acid , abnormal liver function tests or decreasing platelet counts) or there are decreased fetal movements, then she should be assessed by or advice obtained from a specialist and delivered.
Take a dietary history and advise appropriately, such patients should be referred to a district hospital within –three to five days
previous still- births, neonatal deaths, bleeding in previous , the weight of previous baby, gestational age at delivery and any symptoms of persistent headache,nausea and vomiting and epigastric pain
Contact a specialist health facility for further management if any acute severe hypertension or imminent signs of eclampsia or organ dysfunction develop during her hospital stay. These new symptoms and signs now indicate a diagnosis of pre- eclampsia with severe features.
and that complete records accompanies the transport difficulties patient and are handed over to the receiving health professional. An situation, backround, assessment and recommendation (SBAR) form should be filled and sent with the EMS personell.
If the patient is in labour or has a favourable cervix, there is no contraindication for vaginal delivery. Always seek specialist advice.
Instead, use oxytocin 10 units intramuscularly for the active delivery of the placenta and for prevention of postpartum haemorrhage.
Note that irrespective of an eclamptic’s condition, advice must be obtained from an experienced obstetrician, and detailed notes made