Try Magic Notes and save time.Try it free
Try Magic Notes and save timeCrush your year with the magic of personalized studying.Try it free

Chapter 5: Fetal Development - ML5 LPN

Get a hint
B. Twenty-two of the 23 pairs of chromosomes are autosomes and the remaining pair is the sex chromosomes

The nucleus of each soma cell contains 46 chromosomes, arranged in 23 pairs. Each parent donates one chromosome of every pair. Each chromosome is composed of genes, which are segments of DNA that control hereditary traits. Twenty-two of the 23 pairs of chromosomes are autosomes, and the remaining pair, the sex chromosomes, determines an individual gender.
Click the card to flip 👆
1 / 55
1 / 55
Terms in this set (55)
B. Twenty-two of the 23 pairs of chromosomes are autosomes and the remaining pair is the sex chromosomes

The nucleus of each soma cell contains 46 chromosomes, arranged in 23 pairs. Each parent donates one chromosome of every pair. Each chromosome is composed of genes, which are segments of DNA that control hereditary traits. Twenty-two of the 23 pairs of chromosomes are autosomes, and the remaining pair, the sex chromosomes, determines an individual gender.
A nursing student studying reproduction identifies which of the following statements to be correct?

A. The nucleus of each soma cell contains 23 chromosomes.

B. Twenty-two of the 23 pairs of chromosomes are autosomes and the remaining pair is the sex chromosomes.

C. All 23 pairs of chromosomes are autosomes.

D. Not all chromosomes are composed of genes.
A. caring for indoor cats

The nurse will be most concerned that the mother is caring for indoor cats. The nurse will advise her to avoid caring for the cats' litter boxes to avoid contracting the parasite known to cause toxoplasmosis. The nurse understands that parents may implement folklore techniques to try to influence the sex of the child, but this is not a medical concern. The client indicates that despite being home without her partner, the partner is supportive and she has the help of family members so her emotional health is not at risk. Taking acetaminophen once every 3 to 4 weeks and as directed is not cause for concern.
The nurse reviews the notes (above) of a pregnant client. What would concern the nurse the most?

A. caring for indoor cats

B. medications taken during pregnancy

C. client's emotional health

D. client's belief in determining the sex of the child
Image: A. caring for indoor cats The nurse will be most concerned that the mother is caring for indoor cats. The nurse will advise her to avoid caring for the cats' litter boxes to avoid contracting the parasite known to cause toxoplasmosis. The nurse understands that parents may implement folklore techniques to try to influence the sex of the child, but this is not a medical concern. The client indicates that despite being home without her partner, the partner is supportive and she has the help of family members so her emotional health is not at risk. Taking acetaminophen once every 3 to 4 weeks and as directed is not cause for concern.
C. Peritoneal cavity

As the embryo grows in the confined space of the fallopian tube, it causes the tube to dilate. The tube will eventually rupture if the condition remains undetected. If the tube ruptures, hemorrhage into the peritoneal cavity can lead to maternal death.
Often, an ectopic pregnancy occurs in one of the woman's fallopian tubes. If undetected, the growing embryo puts extreme pressure on the tube, dilating it until it finally ruptures. Hemorrhage then occurs, putting the mother's life at risk. Where does the blood hemorrhage into?

A. rectum

B. uterus

C. peritoneal cavity

D. plural cavity
B. Doppler

Fetal heart sounds are best heard with the Doppler from the 10th week onward. They can be heard with the fetoscope by about the 18th to 20th week only. A tocodynamometer is used to record uterine contractions and not to auscultate fetal heart tones. Fetal heart tones may not be audible with an ordinary stethoscope at the 12th week.
A nurse is asked to auscultate the fetal heart sounds in a pregnant client. Which equipment is most appropriate when auscultating fetal heart sounds at the 12th week?

A. stethoscope

B. Doppler

C. fetoscope

D. tocodynometer
A. Foramen ovale

The foramen ovale is a hole that connects the right and left atria so the majority of oxygenated blood can quickly pass into the left side of the fetal heart, go to the brain, and move to the rest of the fetal body.
Fetal circulation differs from the circulatory path of the newborn infant. In utero the fetus has a hole connecting the right and left atria of the heart. This allows oxygenated blood to quickly pass to the major organs of the body. What is this hole called?

A. Foramen ovale

B. Foramen magnum

C. Foramen arteriosus

D. Foramen venosus