MN 551 Unit 5 Midterm Exam / MN551 Unit 5 Midterm
Exam (Version-1): Purdue University |Latest-2023
Question 1.1. A student nurse practitioner asks her preceptor about the origins of different
tissues, and their cellular origins during the process of development. Which of the following
statements by the preceptor best describes the process of cell differentiation? (Points : 3)
“Cells of the hematopoietic system produce the appropriate body cells that are required at each
stage of development.”
“A single stem cell differentiates into approximately 200 different types of cells.”
“A fertilized ovum undergoes a series of divisions, yielding many different cell types.”
“Cells differentiate into necessary body cells, peaking after conception, and ceasing near the time
of birth.”
Question 2.2. A 77-year-old male patient with a diagnosis of stomach cancer has been found to
have metastases in his liver. The patient and his family are surprised at this turn of events, stating
that they don't see how he could have developed cancer in his liver. Which of the following facts
would underlie the reply that the care team provides? (Points : 3)
The parenchymal tissue of the liver is particularly susceptible to secondary malignancies.
The portal circulatory system brings venous blood from the gastrointestinal tract into the liver.
Hepatic stromal tissue shares characteristics with cancerous cells, including lack of anchorage
dependence.
, The proximity of the liver to the stomach allows for direct spread of cancerous cells due to a lack
of contact inhibition.
Question 3.3. The NP is teaching a group of older adults about the value of including foods
containing antioxidants in their diet. Which of the following statements best captures the
rationale underlying the NPs advice?(Points : 3)
Antioxidants inhibit the actions of reactive oxygen species (ROS).
Antioxidants prevent the formation of superoxide dismutase.
Antioxidants react nonspecifically with molecules.
Antioxidants prevent the occurrence of cell dysplasia.
Question 4.4. The nurse practitioner is providing care for a patient with a diagnosis of cirrhosis,
and he notes that the patient's sclerae are jaundiced. The nurse practitioner recalls that jaundice is
caused by excess accumulation of bilirubin, a pigment that can accumulate in which part of the
cell? (Points : 3)
Nucleus
Cytoplasm
Golgi apparatus
Rough endoplasmic reticulum (ER)
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