Fetal Monitors

Weenie Rifareal asked:


The fetal Doppler monitor was invented in 1958 by Dr. Edward H. Hon. The fetal Doppler monitor is also known as a Doppler fetal heart rate monitor. This monitor is used to detect a fetal heart rate.  The Doppler effect is used to provide an audio sound for the fetal heart beats.  There are monitors that can also display fetal heart rates for a better picture of the fetus’ heart condition.

A fetal Doppler monitor works like a stethoscope. The audio produced, however, by the Doppler can be heard by many unlike the stethoscope when only one person can listen to the sound. A disadvantage would be the interference cause by outside sources that it is necessary to apply a transmission gel to help in the signal.

Fetal Doppler monitors are now becoming popular for home use.  Manufacturers make available portable models that are easy to carry around and convenient especially for pregnancy conditions that require regular checks on the fetal heart beat.

There are different types of  fetal Doppler heart monitors.  There are several manufacturers that have variances in models. Some models are simple fetal heart monitors while some have panels that would allow measurement of the fetal heart rate.  There are probe Doppler types with waterproof models that are popular for water births.  Frequency varies from 2 to 3 MHZ with 3 MHZ is recommended for early pregnancy.

Fetal Doppler monitors can be bought outright or there are many companies that rent out monitors.  Research online for the one that is required for a particular situation.



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nana asked:


I just bought it. It almost seems like I was hearing something. I am going to try later on tonight.

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clinicalguard asked:


What is Fetal Heart Monitoring?

Fetal Heart Monitoring is the way that the doctor or yourself may use to monitor the health condition of the fetus by listening to the fetal heart rate (FHR) and keep track of it (the fetal heart rate of the baby/fetus) during the pregnancy, labor and delivery. Two main methods of fetal heart monitoring can tell you whether the fetus in the uterus is doing well or may have some problems.

What are the different types of fetal heart monitoring methods or devices?

Fetal heart monitoring can be categorized as external and internal methods.

The external fetal monitoring can be performed by a stethoscope and Fetal Heart Doppler. A Fetal Heart Doppler measures FHR through continuous ultrasonic waves and thus helps people determine the situation of the fetus. Fetal Doppler gives a clearer heart beat of the fetus than the stethoscope and can detect and pick up the fetal heart beat after 8 weeks gestation with 2MHz & 3MHz probes. The fetal Doppler with 2MHz probe works better for overweight women or women in the third trimester of pregnancy. The reflection of a 3MHz probe is better than the lower frequency 2 MHz except in above conditions.

When we are monitoring fetal heart rate with a Fetal Heart Doppler, an average normal fetal heart rate should be between 120-180 BPM (Beats Per Minute). If the heart beat is not within the range, then the fetus may be in abnormal condition, such as cord compression, fetal hypoxia, fetal distress and fetal heart block etc. If you are monitoring the fetus heart rate yourselves and notice abnormal heart beats, please see your healthcare professionals ASAP.

Fetal Heart Doppler works well as an external method of monitoring. Scientific research shows that, the ultrasonic fetal Doppler does no harm to mothers and the fetus if it is used for not more than 10 minutes per session.

There is another method of fetal monitoring called internal monitoring. This can be done only after the water is broken. In this method, an electrode is attached to the baby’s scalp during delivery so that the fetus’ heartbeat can be heard and printed out on a chart. It is a totally different method with different principles.

Despite that internal monitoring is more accurate than external method, its use is limited to hospital and healthcare professionals due to its difficulty and possible complications involved.

How many types of fetal Dopplers are there?

There are two different types of hand-held Fetal Dopplers, analog and digital. The analog fetal Doppler emits the audible sound of the fetal heart beat without a digital display. A digital Doppler is equipped with a small LCD screen which gives FHR during the test. The digital Doppler display provides a range between 50-210 bpm.

Disclaimer:

The information on this website aims to provide customers with relevant knowledge regarding our products. Under no circumstances should the information be used for therapeutic purposes. Customers must consult their doctors for the correct use of these information and products. ClinicalGuard.com is not responsible for any losses or accidents caused by the use of information on this website.



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Gerald Fitz asked:


Many pregnant women get intense cravings, and studies show that the number one craving is for chocolate. You might be avoiding chocolate because it is “bad for you” or “bad for the baby.” However, chocolate is actually proving to have unexpected health benefits, and these benefits may be doubly important for pregnant women and the development of healthy babies.

We know that chocolate makes us naturally happier. It releases endorphins which act to dull pain and just make us generally feel better. It also stimulates the brain and body. Recent research has found that chocolate can also have positive effects on the fetus. The infants whose mothers ate chocolate regularly throughout pregnancy were found more inclined to smiling, laughter, and were more easily soothed. Strangely enough, it seems that chocolate can make both you and your baby happier.

Chocolate also has several health benefits when taken wisely. Chocolate, especially dark, is full of powerful antioxidants that protect against cell damage. This can be important especially when your body is under the stress of pregnancy. It can also help against fatigue and be preventative against future diseases. When you are pregnant you are more prone to exhaustion as your body supports the development of another person.

Gestational hypertension can happen because of the increased blood volume during pregnancy. Theobromine is a natural substance found in chocolate that fights against fatigue by stimulating the heart. It also increases circulation in the placenta to aid in fetal development. Magnesium is another element in chocolate that is important during pregnancy in the development of the fetus’ brain. Since chocolate has many good substances in it, it may be that when you are craving chocolate you are in fact craving something your body needs.

Obviously chocolate alone is not enough to give you all the vitamins you need during pregnancy. It would be impossible for you to get all you need in your diet alone, and that is why prenatal vitamins are so important. The prenatal vitamin and chocolate have actually now been combined so you have a good tasting prenatal chocolate. These are great because they have been specifically designed for health conscious women during their pregnancy. Taking a chocolate vitamin can allow you to give in to your craving while at the same time monitoring how much chocolate you eat. It is the perfect solution for someone who needs to take a daily vitamin anyway. There are also other “healthy” chocolates you can invest in such as dark chocolate or sugar free, or chocolates to boost energy, creating more ways to ease cravings without having to feel guilty after.

Chocolate has many benefits, but anything in excess is bad for you. Regular chocolate is high in sugar and not good for you in disproportionate amounts. Make smart choices about your chocolates, make sure you are moderate in your intake, and make sure you are taking care of yourself and keeping yourself healthy and then you can let loose and give in to some of those cravings.



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Silverine08 asked:


I’m now 20 weeks pregnant and have been feeling my little boy move for a few weeks now, getting stronger every week. I know its too early for fetal monitoring (ie making sure they have 10 movements a day) but I wonder, how often should I feel him move.

Some days he’s really active and doesn’t stop and other days (like today!) he’s quite quiet and I only feel him a few times a day. Is this OK? How frequently does yours move?

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clinicalguard asked:


ary of fetal doppler

AIUM

American Institute of Ultrasound in Medicine

FDA

Food & Drug Administration

BPM

Beap Per Minute

FHR

Fetal Heart Rate

FM

1. Fetal Movement 2. Frequency Modulation

Doppler Effect

Doppler effect is the basic principle which is employed to detect the speed of blood flow by means of ultrasound. In such a way, fetal heart beat can be heard and examined for defects, if there is any.

UCAN

Umbilical Cord Around Neck, the nuchal cord entanglement, by which Fetal distress is caused.

Fetal hypoxia

Insufficient oxygen supply to the fetus.

Fetal distress

An abnormal condition under which a fetus becomes excessively fatigued, usually characterized by an abnormal heart rhythm.

Fetal heart block

A block of electrical flow within the heart muscle resulting in change of heart rhythm.

Continuous Wave Doppler

This type of ultrasound Doppler uses the change in pitch of the sound waves to provide information about blood flow through a blood vessel.

Fetal Ultrasound Doppler

A device which uses ultrasound to pick up the fetal heart beat and detect the abnormal conditions of fetus.

Echo

A sound wave produced by a reflection of an interface and received by the transducer.

Fetal Monitoring

Monitoring of the baby before birth. This usually refers to monitoring of the fetal heart beat.

Fetal Heartbeat Sounds

Sounds of the fetal heartbeat which like galloping horse, the beat rate is about twice as fast as the mother’s heart rate. The frequency of sounds are between 120-180 BPM.

Fetal Ultrasonic Monitor

Another term of Fetal Ultrasonic Doppler.

Fetoscope

A type of stethoscope, which is especially used for listening to a baby.

High-risk Pregnancy

Pregnancies in which patients are at high risk either fetal or maternal complications.

Incident Beam

A sound wave beam generated by a transducer that strikes an interface.

Internal Fetal Monitoring

A method of monitoring in which an electrode is attached to the baby’s head for recording heart beats.

Receiver

The part of the ultrasound machine that listens to returning sound waves and converts them to electrical signals.

Ultrasound

A sound wave which has a frequency above the audible human range.

3MHz waterproof probe

The probe is good for the whole stage of pregnancy, especially for early pediatric/neonatal fetal heartbeat detection, as early as 8-weeks.

2MHz waterproof probe

The probe is optimized mainly for deep penetration for heavy patients and third trimester pregnancy.

Disclaimer:

The information on this website aims to provide customers with relevant knowledge regarding our products. Under no circumstances should the information be used for therapeutic purposes. Customers must consult their doctors for the correct use of these information and products. ClinicalGuard.com is not responsible for any losses or accidents caused by the use of information on this website.



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Preggy with #1! asked:


the one that is called “BebeSounds Deluxe Prenatal Heart Listener”
I really want one,but there are some bad reviews and some good.In oreder to get it I have to drive about an hour.Do you think its worth it?

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ஐ♥ Number 2 is due 9/9/09 ♥ஐ♥ asked:


What is a high grade name brand (or no name brand… i dont care as long as its a really good one) fetal heart monitor?
one that works good in early pregnancy though, not one that you can only use towards the end. Im 12 weeks.

New Cpr Guidelines

Raj Kumar asked:


In pregnancy, the physiologic functions of the mother prior to conception are altered to provide the needs of the fetus growing in her womb. The placenta itself starts producing several hormones that are vital for a safe and normal pregnancy. These changes may also affect thyroid function and thyroid screening tests.

One of these changes is the increase in renal blood flow and the filtration rate of the kidneys, leading to an increased secretion of the circulating iodides in the body. Normally, most of the iodides acquired through ingestion of iodine-rich foods are quickly excreted by the kidney but not before the thyroid gland manages to “trap” about a fifth of the circulating iodides for the production of thyroid hormones. Because normal physiologic changes gets rid of some of the iodides before the thyroid manages to trap them, dietary iodide requirements are raised to around 200 micrograms per day in the pregnant woman in contrast to only 150 micrograms per day for normal persons.

In pregnancy, the mother’s thyroid gland ordinarily enlarges up to 50 percent with a corresponding increase in thyroxine or T4 secretion. One of the reasons for this change is that the human chorionic gonadotropin (hCG) secreted by the placenta has a stimulating effect on the thyroid. There is a broad structural homology between the beta subunits of hCG and thyroid-stimulating hormone (TSH), which gives hCG a weak thyroid-stimulating effect. Another hormone which may also affect the increase in thyroxine production by the mother is human chorionic thyrotropin, which is also secreted by the placenta.

Thyroid Function in the Fetus

The thyroid gland of the fetus begins to function by the end of the third month of gestation but prior to that time, the fetus is largely dependent on maternal thyroid hormones. The fetal thyroid gland gains the ability to produce thyroid hormones by around the eighth to tenth week of gestation. In the twelfth week of gestation, it begins to exhibit the ability to trap iodine actively and begins to produce thyroxine soon after.

Thyroid hormone is vital for fetal brain development as in neuronal multiplication, migration, and the structural organization of the brain of the fetus. Brain development occurs mostly during the second trimester, wherein the fetus is yet unable to produce its own fetal thyroid hormones and is largely dependent on maternal thyroid hormones for normal brain development.

Evidence supports the transfer of maternal thyroid hormones to the fetus via the placenta before and after fetal thyroid functionality. Thirty percent of the thyroxine found in the cord blood of neonates is maternal thyroxine and it has been found in the amniotic sacs of fetuses from 4 months to 6 months in gestation.

Thyroid Problems in the Newborn

The endocrine system of the newborn is usually highly developed at the time of birth and the neonate rarely exhibits thyroid function problems immediately. However, in some instances, thyroid function in the infant must be monitored.

One such example is that if the mother experienced hyperthyroidism or was treated with excess thyroid hormone during her pregnancy. If such is the case, the infant may be born with a thyroid gland that secretes less than the normal amount of thyroid hormone due to the excess in maternal thyroid hormone.

On the other side, if the mother had a thyroidectomy or surgical removal of her thyroid gland, the child may be born with temporary hyperthyroidism. This may be because the pituitary gland of the mother secretes increased amounts of thyroid-stimulating hormone due to her hypothyroid state. The thyroid gland of the fetus then responds to the maternal TSH and starts producing thyroid hormone in excess.

In a fetus with a problem in thyroid hormone secretion, there is poor bone development and mental retardation. This may cause the condition cretin dwarfism. If the newborn is not treated within several weeks, mental retardation becomes permanent. It is for this reason that newborns are routinely screened for hypothyroidism so as to prevent the devastating and permanent effects of cretinism.

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