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Author Question: Chromosomes are composed of genes, which are composed of DNA. Abnormalities are either numerical or ... (Read 80 times)

jake

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Chromosomes are composed of genes, which are composed of DNA. Abnormalities are either numerical or structural in nature. Which abnormalities are structural? Select all that apply.
 
  a. Part of a chromosome is missing.
  b. The material within a chromosome is rearranged.
  c. One or more sets of chromosomes are added.
  d. Entire single chromosome is added.
  e. Two chromosomes adhere to each other.

Question 2

The fetal heart rate baseline increases 15 beats per minute after vibroacoustic stimulation. The best interpretation of this is that the fetus is showing
 
  a. A reassuring response
  b. Progressive acidosis
  c. Parasympathetic stimulation
  d. A worsening hypoxia



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kxciann

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Answer to Question 1

A, B, E
Feedback
Correct It is critical to remember that characteristics of structural abnormalities
include part of a chromosome missing or added, rearrangement of material
within chromosomes, two chromosomes that adhered to each other, and
fragility of a specific site on the X chromosome.
Incorrect The addition of a single chromosome (trisomy), the deletion of a single
chromosome (monosomy), and one or more added sets of chromosomes
(polyploidy) are numerical abnormalities.

Answer to Question 2

A
Feedback
A The fetus with adequate reserve for the stress of labor will usually respond to
vibroacoustic stimulation with a temporary increase in the fetal heart rate (FHR)
over baseline of 15 bpm for 15 seconds or more.
B An increase in the FHR after stimulation is reassuring.
C An increase in the FHR after stimulation is a reassuring pattern and does not
indicate problems with the parasympathetic nervous system.
D An increase in the FHR with stimulation does not indicate hypoxia.




jake

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Reply 2 on: Jun 27, 2018
Wow, this really help


bblaney

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Reply 3 on: Yesterday
:D TYSM

 

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