______________________________________
NSG 550 EXAM 2
ADVANCED DIAGNOSTIC REASONING
FOR NURSE PRACTITIONERS.
AT WILKES UNIVERSITY
EXAM- QUESTIONS & (UPDATED)
ANSWERS
EXAM COVER SHEET
PROGRAM: Nurse Practitioner (NP) Program
COURSE NAME: NSG 550 – Diagnostic Reasoning for Nurse
Practitioners
EXAM NAME: NSG 550 Exam 2 – Diagnostic Reasoning for Nurse
Practitioners
NSG 550 EXAM 2 | DIAGNOSTIC REASONING
,### 1. A respiratory therapist is preparing to perform pulmonary function testing
(spirometry) on two adult patients with different body characteristics. One
patient is a 25-year-old tall male athlete, while the other is a 72-year-old shorter
female with a history of chronic respiratory disease. Before interpreting the
results, the healthcare provider explains that several normal physiologic factors
must be considered because they can influence predicted spirometry values.
Which factors can cause pulmonary function test (spirometry) results to vary?
**Correct Answer:** **Age, sex, height, and weight can all influence pulmonary
function test (spirometry) results.**
**Rationale:** Pulmonary function tests compare an individual's measured
lung function with predicted normal values based on demographic and physical
characteristics. Age affects lung elasticity and respiratory muscle strength, while
sex influences expected lung volumes because males generally have larger lungs
than females of similar size. Height is directly related to lung size and capacity,
with taller individuals typically having larger lung volumes. Weight, particularly
obesity, may reduce lung expansion and alter respiratory mechanics, making it
another important variable when interpreting spirometry findings.
---
### 2. A 60-year-old patient with a long history of smoking reports increasing
shortness of breath and difficulty performing daily activities. The healthcare
provider orders pulmonary function tests to determine the severity of lung
impairment and to evaluate the patient's response to treatment. The provider
also wants to distinguish whether the patient's symptoms are caused by
obstructive or restrictive lung disease. What are pulmonary function tests
(spirometry) primarily used to evaluate?
,**Correct Answer:** **Pulmonary function tests are used to evaluate lung
function and pulmonary reserve, assess response to bronchodilator therapy,
differentiate between restrictive and obstructive chronic pulmonary disease,
determine lung capacity, and perform inhalation allergy testing.**
**Rationale:** Pulmonary function tests provide objective measurements of
respiratory performance and are essential in diagnosing and monitoring lung
disease. They help determine the amount of air the lungs can hold and how
effectively air moves through the airways. These tests are valuable for
monitoring disease progression, evaluating treatment effectiveness after
bronchodilator administration, and distinguishing obstructive disorders such as
asthma and COPD from restrictive disorders such as pulmonary fibrosis. In some
situations, pulmonary testing is also combined with inhalation allergy testing to
evaluate respiratory responses to allergens.
---
### 3. A nursing student is observing a patient undergoing a complete
pulmonary function test in the respiratory laboratory. The respiratory therapist
explains that several individual measurements are obtained to fully evaluate
lung performance rather than relying on a single value. The student asks which
specific tests are routinely included in a standard pulmonary function study.
What tests are included in pulmonary function testing?
**Correct Answer:** **Pulmonary function testing includes spirometry, airflow
measurement, lung volume measurement, and lung capacity assessment.**
, **Rationale:** Pulmonary function testing consists of several complementary
measurements that evaluate different aspects of respiratory function.
Spirometry measures the movement of air into and out of the lungs, while
airflow measurements assess the speed of exhalation. Lung volume testing
determines the amount of air remaining in the lungs after breathing, and lung
capacity measurements evaluate the maximum amount of air the lungs can
contain. Together, these tests provide a comprehensive assessment of
pulmonary health and help diagnose various respiratory disorders.
---
### 4. A patient with progressive shortness of breath is scheduled for
spirometry. During the examination, the respiratory therapist instructs the
patient to inhale as deeply as possible and then exhale forcefully until no more
air can be expelled. The therapist records this measurement to assess overall
lung function. What is Forced Vital Capacity (FVC)?
**Correct Answer:** **Forced Vital Capacity (FVC) is the amount of air that can
be forcefully expelled from a maximally inflated lung after taking the deepest
possible breath.**
**Rationale:** Forced Vital Capacity measures the maximum volume of air
that can be exhaled forcefully after complete inhalation. This value reflects the
functional capacity of the lungs and chest wall and helps identify abnormalities
in ventilation. Reduced FVC may indicate either airway obstruction or restricted
lung expansion. FVC is one of the most important components of spirometry
because it is used in combination with FEV1 to diagnose and classify pulmonary
diseases.
NSG 550 EXAM 2
ADVANCED DIAGNOSTIC REASONING
FOR NURSE PRACTITIONERS.
AT WILKES UNIVERSITY
EXAM- QUESTIONS & (UPDATED)
ANSWERS
EXAM COVER SHEET
PROGRAM: Nurse Practitioner (NP) Program
COURSE NAME: NSG 550 – Diagnostic Reasoning for Nurse
Practitioners
EXAM NAME: NSG 550 Exam 2 – Diagnostic Reasoning for Nurse
Practitioners
NSG 550 EXAM 2 | DIAGNOSTIC REASONING
,### 1. A respiratory therapist is preparing to perform pulmonary function testing
(spirometry) on two adult patients with different body characteristics. One
patient is a 25-year-old tall male athlete, while the other is a 72-year-old shorter
female with a history of chronic respiratory disease. Before interpreting the
results, the healthcare provider explains that several normal physiologic factors
must be considered because they can influence predicted spirometry values.
Which factors can cause pulmonary function test (spirometry) results to vary?
**Correct Answer:** **Age, sex, height, and weight can all influence pulmonary
function test (spirometry) results.**
**Rationale:** Pulmonary function tests compare an individual's measured
lung function with predicted normal values based on demographic and physical
characteristics. Age affects lung elasticity and respiratory muscle strength, while
sex influences expected lung volumes because males generally have larger lungs
than females of similar size. Height is directly related to lung size and capacity,
with taller individuals typically having larger lung volumes. Weight, particularly
obesity, may reduce lung expansion and alter respiratory mechanics, making it
another important variable when interpreting spirometry findings.
---
### 2. A 60-year-old patient with a long history of smoking reports increasing
shortness of breath and difficulty performing daily activities. The healthcare
provider orders pulmonary function tests to determine the severity of lung
impairment and to evaluate the patient's response to treatment. The provider
also wants to distinguish whether the patient's symptoms are caused by
obstructive or restrictive lung disease. What are pulmonary function tests
(spirometry) primarily used to evaluate?
,**Correct Answer:** **Pulmonary function tests are used to evaluate lung
function and pulmonary reserve, assess response to bronchodilator therapy,
differentiate between restrictive and obstructive chronic pulmonary disease,
determine lung capacity, and perform inhalation allergy testing.**
**Rationale:** Pulmonary function tests provide objective measurements of
respiratory performance and are essential in diagnosing and monitoring lung
disease. They help determine the amount of air the lungs can hold and how
effectively air moves through the airways. These tests are valuable for
monitoring disease progression, evaluating treatment effectiveness after
bronchodilator administration, and distinguishing obstructive disorders such as
asthma and COPD from restrictive disorders such as pulmonary fibrosis. In some
situations, pulmonary testing is also combined with inhalation allergy testing to
evaluate respiratory responses to allergens.
---
### 3. A nursing student is observing a patient undergoing a complete
pulmonary function test in the respiratory laboratory. The respiratory therapist
explains that several individual measurements are obtained to fully evaluate
lung performance rather than relying on a single value. The student asks which
specific tests are routinely included in a standard pulmonary function study.
What tests are included in pulmonary function testing?
**Correct Answer:** **Pulmonary function testing includes spirometry, airflow
measurement, lung volume measurement, and lung capacity assessment.**
, **Rationale:** Pulmonary function testing consists of several complementary
measurements that evaluate different aspects of respiratory function.
Spirometry measures the movement of air into and out of the lungs, while
airflow measurements assess the speed of exhalation. Lung volume testing
determines the amount of air remaining in the lungs after breathing, and lung
capacity measurements evaluate the maximum amount of air the lungs can
contain. Together, these tests provide a comprehensive assessment of
pulmonary health and help diagnose various respiratory disorders.
---
### 4. A patient with progressive shortness of breath is scheduled for
spirometry. During the examination, the respiratory therapist instructs the
patient to inhale as deeply as possible and then exhale forcefully until no more
air can be expelled. The therapist records this measurement to assess overall
lung function. What is Forced Vital Capacity (FVC)?
**Correct Answer:** **Forced Vital Capacity (FVC) is the amount of air that can
be forcefully expelled from a maximally inflated lung after taking the deepest
possible breath.**
**Rationale:** Forced Vital Capacity measures the maximum volume of air
that can be exhaled forcefully after complete inhalation. This value reflects the
functional capacity of the lungs and chest wall and helps identify abnormalities
in ventilation. Reduced FVC may indicate either airway obstruction or restricted
lung expansion. FVC is one of the most important components of spirometry
because it is used in combination with FEV1 to diagnose and classify pulmonary
diseases.
