A 42-year-old pregnant patient asks the nurse if the baby will be born with Down syndrome because of a chromosomal abnormality. What chromosomal abnormality does the nurse know this to be?
1. 23 pairs of chromosomes
2. 26 pairs of chromosomes
3. One member of a chromosome pair missing
4. One extra member of a chromosome pair
Correct Answer: 4
The abnormality being described is not 23 pairs of chromosomes, 26 pairs of chromosomes, or one with a missing member of a chromosome pair. A zygote that is trisomic, or one that has three chromosomes instead of the usual two, can produce the condition called trisomy 21 or Down syndrome. The specific chromosome involved with this disorder is number 21. That is the abnormality being described.
You might also like to view...
Which of the following factors contributes to peripheral airway resistance in patients with COPD?
A) Airway edema B) Hypersecretion of mucus C) Pulmonary hyperinflation D) All of the above are correct.
The informatics nurse needs to complete mandatory continuing education hours for relicensure. Which action should the nurse take after locating an online education program?
A) Validate the approval body. B) Complete the registration form. C) Review the learning objectives. D) Pay the fee to access the program.
________ is characterized by motor restlessness, and an inability to sit or stand still, during which the individual feels the need to pace, rock, or tap a foot.
Fill in the blank(s) with the appropriate word(s).
Why are bone marrow stimulants used in the treatment of cancer?
a. To increase uptake of the chemotherapy from the interior of the bones b. To strengthen bones weakened by pathologic processes c. To enhance the patient's immune system during treatment d. To protect the bone marrow from destructive actions from the cancer treatment