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yes.That's why ultrasounds are taken. Not only to be sure the baby is growing, but it is also used to determine what stage of growth the baby is in.

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โˆ™ 2005-11-19 23:20:32
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Q: Can an ultrasound tell the difference between a 4-week-old fetus and a 7-week-old fetus?
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What is the difference between ultraviolet radiation and ultrasound?

The difference between ultraviolet radiation and ultrasound is how they react when inside the body. Ultraviolet radiation attacks the cells and destroys cells that are harmful to the body. Ultrasound is merely a viewing device. Ultrasound is used to detect abnormalities in the body.


What is the difference between ultrasound and shock waves Eg a shockwave does damage to say a kidney stone but you can ultrasound the kidney without damaging it?

Ultrasound.


What is the difference between ultrasound and infrasound?

Ultrasound is above 18 kilohertz. Infrasound is below 20 hertz.


What is the difference between an ultrasound and a Doppler?

A Doppler is a higher power than a regular ultrasound and is not routinely used in the first trimester. A ultrasound is used early in the pregnancy to protect the baby.


What is the difference between sound waves and ultrasound waves?

Difference is in their frequency, audible sound waves is between 12 Hz and 20,000 Hz, Ultrasound waves is any sound that has a frequency beyond the 20,000 Hz limit


What is the difference between Sonar and Ultrasound?

sonar is used to detect big penises


What is the difference between audible sound and ultrasound?

Ultrasound cannot be heard as it has a higher frequency than audible sound, with a frequency above 20000Hz.


What is the difference between infra sound and ultrasound?

Infrasound has a frequency below normal hearing. Ultrasound waves have a frequency above the normal range of human hearing.


Can an ultrasound tell the difference between a 6 week fetus and a 7 week fetus?

Yes.


What is the difference between ultrasonic and ultrasound?

Ulrasound is sound that is too high pitched for the human ear to hear. Ultrasonic is used to describe a sound as being an ultrasound. So, ultrasonic is an adjective, and ultrasound is a verb.


What is the difference between infrasound and ultrasound And provide one example of how each is used.?

Infrasound is always smaller or lighter than ultrasound. For example: infrasound can be the sound of a paper clip hitting the floor, and ultrasound can be the sound of two planets colliding.


What is the difference between hypodense mass and isodense mass?

A hypodense mass looks darker than surrounding tissue on ultrasound. An isodense mass is the same color as surrounding tissue on ultrasound.


What is the difference between a portable ultrasound and a regular ultrasound?

"A regular ultrasound is usually a permamently installed piece of medical equipment installed in a doctor's office or a medical provider's facility. A portable ultrasound is an ultrasound that can be carried from one location to another. Portable ultraounds can be particularly useful for treating large animals, for use in remote areas, or for diagnosing the homebound."


What is the difference between ecg and echo?

An ECG or EKG is a recording of the electrical activity of the heart. An echocardiogram is an ultrasound recording of the heart and its blood flow.


How effective are home ultrasound therapy?

Home Ultrasound Therapy using a portable ultrasound machine can be very effective, just as effective as medical or professional ultrasound units. The difference between a chiropractor of doctor's ultrasound machine and a a home ultrasound machine is the doctor's ultrasound device utilizes continuous waves while a home version uses pulsed ultrasonic waves. This makes the home units safe for the general public, as continuous wave ultrasound can be dangerous if used in the wrong hands. When using a home ultrasound therapy massage machine, you will treat more frequently than if you were have ultrasound treatments at a physical therapist's office, but the results will be the same and in the long run, you will save a substantial amount of money.


How can you tell the difference between gastritis and gallbladder disease?

By seeing a doctor for a work-up. Often, they will need to do imaging (CT scan, ultrasound) for a definitive diagnosis.


When does ultrasound happen?

Ultrasound scans are given at roughly between 16 and 22 weeks. More can be scheduled if there is a problem.


What is the difference between ultrasound film and x-ray film?

An ultrasound is where they put gel on what ever part is going to be examined. Then they put a transducer or a wand along the gel. The ultrasound wand creates soundwaves, which in turn creates pictures on the screen. FOr x-rays you're place either against a machine, or under a machine where they will take some still pictures of you.


How much does an ultrasound tech get paid?

The Average annual salary of Ultrasound techs is about $64,380. You can between 16 and 45 dollars an hour.


What is the difference between an ultrasound and amniocentesis?

Ultrasound is non-invasive and therefore lower risk. It is the use of high-frequency sound waves to visualize the interior of the body, typically to "see" the fetus. Amniocentesis is the extraction of amniotic fluid from the uterus via a big needle.


What are the similarities between sound and ultrasound?

"Sound" is a mechanical wave traveling through a medium. Ultrasound is sound, but its frequency is higher than humans can hear.


A pelvic ultrasound can detect what types of pregnancy?

Ultrasound is particularly useful in distinguishing between intrauterine (within the uterus) and ectopic (outside the uterus) pregnancies.


Can you tell you are pregnant b4 your missed period on a ultrasound?

No. Typically it takes somewhere between 3 and 5 weeks after a missed period for it to show up on an ultrasound.


What is an abdominal ultrasound?

Because ultrasound can distinguish subtle variations between soft, fluid-filled tissues, it is particularly useful in providing diagnostic images of the abdomen.


What is difference between as on and as at?

difference between as on and as at