Walden University NURS 6501N WEEK 1 Quiz – Question and Answers – Set 2 (Correct Answers).
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Question 1
1 out of 1 points
A 15-year-old female is diagnosed with Prader-Willi syndrome. This condition is an example of:
Selected Answer: a.
Gene imprinting
Correct Answer: a.
Gene imprinting
Question 2
0 out of 1 points
A cell is isolated, and electrophysiology studies reveal that the resting membrane potential is –70 millivolts. The predominant intracellular ion is Na+, and the predominant extracellular ion is K+. With voltage change, which of the following would result in an action potential?
Selected Answer: a.
K+ rushing into the cell
Correct Answer: b.
Na+ rushing into the cell
Question 3
1 out of 1 points
A 55-year-old male with a 30-year history of smoking is examined for respiratory disturbance. Examination of his airway (bronchial) reveals that stratified squamous epithelial cells have replaced the normal columnar ciliated cells. This type of cellular adaptation is called:
Selected Answer: c.
Metaplasia
Correct Answer: c.
Metaplasia
Question 4
0 out of 1 points
The student is reviewing functions of the cell. The student would be correct in identifying the primary function of the nerve cell as:
Selected Answer: b.
Conductivity
Correct Answer: d.
Communication
Question 5
1 out of 1 points
A 13-year-old girl has a karyotype that reveals an absent homologous X chromosome with only a single X chromosome present. What medical diagnosis will the nurse observe on the chart?
Selected Answer: c.
Turner syndrome
Correct Answer: c.
Turner syndrome
Question 6
1 out of 1 points
A group of prison inmates developed tuberculosis following exposure to an infected inmate. On examination, tissues were soft and granular (like clumped cheese). Which of the following is the most likely cause?
Selected Answer: c.
Caseous necrosis
Correct Answer: c.
Caseous necrosis
Question 7
1 out of 1 points
A nurse is discussing the movement of fluid across the arterial end of capillary membranes into the interstitial fluid surrounding the capillary. Which process of fluid movement is the nurse describing?
Selected Answer: a.
Hydrostatic pressure
Correct Answer: a.
Hydrostatic pressure
Question 8
1 out of 1 points
How are potassium and sodium transported across plasma membranes?
Selected Answer: c.
By adenosine triphosphate enzyme (ATPase)
Correct Answer: c.
By adenosine triphosphate enzyme (ATPase)
Question 9
1 out of 1 points
When a patient asks what causes cystic fibrosis, how should the nurse respond? Cystic fibrosis is caused by an _____ gene.
Selected Answer: d.
Autosomal recessive
Correct Answer: d.
Autosomal recessive
Question 10
1 out of 1 points
An aide asks the nurse why people who have neurofibromatosis will show varying degrees of the disease. Which genetic principle should the nurse explain to the aide?
Selected Answer: b.
Expressivity
Correct Answer: b.
Expressivity
Question 11
1 out of 1 points
A runner has depleted all the oxygen available for muscle energy. Which of the following will facilitate his continued muscle performance?
Selected Answer: c.
Anaerobic glycolysis
Correct Answer: c.
Anaerobic glycolysis
Question 12
1 out of 1 points
A nurse is reading a chart and sees the term oncotic pressure. The nurse recalls that oncotic pressure (colloid osmotic pressure) is determined by:
Selected Answer: b.
Plasma proteins
Correct Answer: b.
Plasma proteins
Question 13
1 out of 1 points
A 12-year-old male is diagnosed with Klinefelter syndrome. His karyotype would reveal which of the following?
Selected Answer: d.
XXY
Correct Answer: d.
XXY
Question 14
1 out of 1 points
Which of the following mutations have the most significant effect on protein synthesis?
Selected Answer: d.
Frameshift mutations
Correct Answer: d.
Frameshift mutations
Question 15
1 out of 1 points
A eukaryotic cell is undergoing DNA replication. In which region of the cell would most of the genetic information be contained?
Selected Answer: c.
Nucleolus
Correct Answer: c.
Nucleolus
Question 16
1 out of 1 points
Why is potassium able to diffuse easily in and out of cells?
Selected Answer: c.
Because the resting plasma membrane is more permeable to potassium
Correct Answer: c.
Because the resting plasma membrane is more permeable to potassium
Question 17
1 out of 1 points
The ion transporter that moves Na+ and Ca2+ simultaneously in the same direction is an example of which of the following types of transport?
Selected Answer: d.
Symport
Correct Answer: d.
Symport
Question 18
1 out of 1 points
Sodium and water accumulation in an injured cell are a direct result of:
Selected Answer: a.
Decreased ATP production
Correct Answer: a.
Decreased ATP production
Question 19
1 out of 1 points
A patient has severe mental retardation caused by a deletion of part of chromosome 5. What genetic disorder will the nurse see documented in the chart?
Selected Answer: c.
Cri du chat syndrome
Correct Answer: c.
Cri du chat syndrome
Question 20
1 out of 1 points
The early dilation (swelling) of the cell’s endoplasmic reticulum results in:
Selected Answer: c.
Reduced protein synthesis
Correct Answer: c.
Reduced protein synthesis
Question 21
1 out of 1 points
A patient who has diarrhea receives a hypertonic saline solution intravenously to replace the sodium and chloride lost in the stool. What effect will this fluid replacement have on cells?
Selected Answer: c.
Cells will shrink.
Correct Answer: c.
Cells will shrink.
Question 22
1 out of 1 points
What is the diagnosis of a 13-year-old female who has a karyotype that reveals an absent homologous X chromosome with only a single X chromosome present? Her features include a short stature, widely spaced nipples, reduced carrying angle at the elbow, and sparse body hair.
Selected Answer: c.
Turner syndrome
Correct Answer: c.
Turner syndrome
Question 23
1 out of 1 points
In teaching a patient with cirrhosis, which information should the nurse include regarding cholesterol?
Selected Answer: a.
Cholesterol decreases the membrane fluidity of the erythrocyte, which reduces its ability to carry oxygen.
Correct Answer: a.
Cholesterol decreases the membrane fluidity of the erythrocyte, which reduces its ability to carry oxygen.
Question 24
1 out of 1 points
A patient has a heart attack that leads to progressive cell injury that causes cell death with severe cell swelling and breakdown of organelles. What term would the nurse use to define this process?
Selected Answer: d.
Necrosis
Correct Answer: d.
Necrosis
Question 25
1 out of 1 points
During childhood, the thymus decreases in size, and this is referred to as _____ atrophy.
Selected Answer: a.
Physiologic
Correct Answer: a.
Physiologic
Question 26
0 out of 0 points
When completing this quiz, did you comply with Walden University’s Code of Conduct including the expectations for academic integrity?
Selected Answer:
Yes
Correct Answer:
Yes
Sunday, June 3, 2018 2:56:42 PM EDT [Show Less]