NR 507 Week 4 Midterm Exam Plus Answers-
100% correct
1. Question : What is the final stage of the infectious process?
Student
Colonization
Answer:
Invasion
Multiplication
Spread
Instructor From the perspective of the microorganisms that cause disease, the
Explanation: infectious process undergoes four separate stages of progression: (1)
colonization, (2) invasion, (3) multiplication, and (4) spread.
Points Received: 2 of 2
Comments:
Question 2. Question : Where in the respiratory tract do the majority of foreign
objects aspirated by children finally lodge?
Student
Trachea
Answer:
Left lung
Bronchus
, Bronchioles
Instructor Approximately 75% of aspirated foreign bodies lodge in a bronchus.
Explanation: The other options are not locations where children aspirate the
majority of foreign objects.
Points Received: 0 of 2
Comments:
Question 3. Question : What is the primary cause of respiratory distress syndrome
(RDS) of the newborn?
Student
Immature immune system
Answer:
Small alveoli
Surfactant deficiency
Anemia
Instructor RDS is primarily caused by surfactant deficiency and secondarily by
Explanation: a deficiency in alveolar surface area for gas exchange. None of the
other options are related to the cause of RDS.
Points Received: 2 of 2
Comments:
Question 4. Question : Which statement concerning benign tumors is true?
, Student
The resulting pain is severe.
Answer:
Benign tumors are not encapsulated.
Benign tumors are fast growing.
The cells are well-differentiated.
Instructor A benign tumor is well-differentiated with its tissue appearing
Explanation: similar to the tissue from which it arose. The other options are
characteristic of a malignant tumor.
Points Received: 2 of 2
Comments:
Question 5. Question : Which compensatory mechanism is spontaneously used by
children diagnosed with tetralogy of Fallot to relieve
hypoxic spells?
Student
Lying on their left side
Answer:
Performing the Valsalva maneuver
Squatting
Hyperventilating
Instructor Squatting is a spontaneous compensatory mechanism used by older
Explanation: children to alleviate hypoxic spells. Squatting and its variants
increase systemic resistance while decreasing venous return to the
heart from the inferior vena cava. The other options would not
result in these changes.
, Points Received: 2 of 2
Comments:
Question 6. Question : Which cytokines initiate the production of corticotropin-
releasing hormone (CRH)?
Student
IL–1 and IL-6
Answer:
IL-2 and TNF-
IFN and IL-12
TNF-ß and IL-4
Instructor Although a number of stress factors initiate the production of CRH,
Explanation: of the options available, only high levels of IL-1 and IL-6 initiate
such a response.
Points Received: 2 of 2
Comments:
Question 7. Question : Hemolytic disease of the newborn (HDN) can occur if the
mother:
Student
Is Rh-positive and the fetus is Rh-negative
Answer:
Is Rh-negative and the fetus is Rh-positive
Has type A blood and the fetus has type O
100% correct
1. Question : What is the final stage of the infectious process?
Student
Colonization
Answer:
Invasion
Multiplication
Spread
Instructor From the perspective of the microorganisms that cause disease, the
Explanation: infectious process undergoes four separate stages of progression: (1)
colonization, (2) invasion, (3) multiplication, and (4) spread.
Points Received: 2 of 2
Comments:
Question 2. Question : Where in the respiratory tract do the majority of foreign
objects aspirated by children finally lodge?
Student
Trachea
Answer:
Left lung
Bronchus
, Bronchioles
Instructor Approximately 75% of aspirated foreign bodies lodge in a bronchus.
Explanation: The other options are not locations where children aspirate the
majority of foreign objects.
Points Received: 0 of 2
Comments:
Question 3. Question : What is the primary cause of respiratory distress syndrome
(RDS) of the newborn?
Student
Immature immune system
Answer:
Small alveoli
Surfactant deficiency
Anemia
Instructor RDS is primarily caused by surfactant deficiency and secondarily by
Explanation: a deficiency in alveolar surface area for gas exchange. None of the
other options are related to the cause of RDS.
Points Received: 2 of 2
Comments:
Question 4. Question : Which statement concerning benign tumors is true?
, Student
The resulting pain is severe.
Answer:
Benign tumors are not encapsulated.
Benign tumors are fast growing.
The cells are well-differentiated.
Instructor A benign tumor is well-differentiated with its tissue appearing
Explanation: similar to the tissue from which it arose. The other options are
characteristic of a malignant tumor.
Points Received: 2 of 2
Comments:
Question 5. Question : Which compensatory mechanism is spontaneously used by
children diagnosed with tetralogy of Fallot to relieve
hypoxic spells?
Student
Lying on their left side
Answer:
Performing the Valsalva maneuver
Squatting
Hyperventilating
Instructor Squatting is a spontaneous compensatory mechanism used by older
Explanation: children to alleviate hypoxic spells. Squatting and its variants
increase systemic resistance while decreasing venous return to the
heart from the inferior vena cava. The other options would not
result in these changes.
, Points Received: 2 of 2
Comments:
Question 6. Question : Which cytokines initiate the production of corticotropin-
releasing hormone (CRH)?
Student
IL–1 and IL-6
Answer:
IL-2 and TNF-
IFN and IL-12
TNF-ß and IL-4
Instructor Although a number of stress factors initiate the production of CRH,
Explanation: of the options available, only high levels of IL-1 and IL-6 initiate
such a response.
Points Received: 2 of 2
Comments:
Question 7. Question : Hemolytic disease of the newborn (HDN) can occur if the
mother:
Student
Is Rh-positive and the fetus is Rh-negative
Answer:
Is Rh-negative and the fetus is Rh-positive
Has type A blood and the fetus has type O
