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Old 05-29-2010
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Zygote Earliest Detection of Fetal Heartbeats

A biotechnology company is developing a monitor that can detect a fetal heartbeat. Their goal to develop a product that can detect a fetal heartbeat at the earliest possible time. which of the following is the earliest gestational time that this device could theoretically be effective?


A) 2 weeks
B) 3 weeks
C) 4 weeks
D) 6 weeks
E) 8 weeks
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Old 05-29-2010
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The answer is "C" ... Becasuse, the fetal heart starts beating at age of 4 weeks ... But Fetal heart tone is firstly heard with a Doppler Stethoscope at age of 10-12 weeks. So, if the new device can detect the earliest heart sound, it can best do that as early as age of 4 weeks in order to be effective and good one.
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Old 05-29-2010
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And the mnemonic that comes in handy hear is this:
the 4-chamber cavity is audible
at 4th week of pregnancy.
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Old 05-29-2010
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Default hi

i will go with c 4 weeks
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Old 05-29-2010
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yes ans is C. 4 weeks
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Old 05-29-2010
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Default C

Quote:
Originally Posted by ath.pantelis View Post
And the mnemonic that comes in handy hear is this:
the 4-chamber cavity is audible
at 4th week of pregnancy.
ya its 4 weeks...thanks for the mnemonic...now onwards i'll not confused with 6 weeks....
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Old 05-29-2010
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Smile Thanks Ath . .

I almost forgot those things, it's 4 weeks . . Yup2, if there's any device can detect in 2-3 Month. . It must be a paranormal activity hehehehe
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