Exam 2 Flashcards
(173 cards)
A couple is seeking genetic counseling regarding their risk of having a child with cystic fibrosis. The nurse explains that cystic fibrosis is inherited in which of the following patterns?
A) X-linked recessive
B) Autosomal dominant
C) Autosomal recessive
D) Mitochondrial inheritance
C) Autosomal recessive
A newborn is diagnosed with cystic fibrosis. The nurse understands that the genetic mutation responsible for this disease is located on which chromosome?
A) Chromosome 7
B) Chromosome 21
C) Chromosome 15
D) Chromosome X
A) Chromosome 7
A nurse is providing education to parents of a child diagnosed with cystic fibrosis. Which statement made by the parents indicates a need for further teaching?
A) “Each of our children has a 50% chance of inheriting cystic fibrosis.”
B) “We should consider genetic testing if we plan to have more children.”
C) “Cystic fibrosis affects mucus production, causing thick secretions in the lungs and pancreas.”
D) “This condition is caused by a defect in chloride transport in cells.”
A) “Each of our children has a 50% chance of inheriting cystic fibrosis.”
Rationale: Cystic fibrosis follows an autosomal recessive inheritance pattern, meaning each child has a 25% chance of having the disease, a 50% chance of being a carrier, and a 25% chance of being unaffected if both parents are carriers.
A patient presents with a persistent cough, unexplained weight loss, and hemoptysis. The nurse knows that the most common type of malignant lung cancer is:
A) Small cell carcinoma
B) Squamous cell carcinoma
C) Large cell carcinoma
D) Non-small-cell carcinoma
D) Non-small-cell carcinoma
A nurse is teaching a group about lung cancer risk factors. Which statement made by a participant indicates the need for further education?
A) “Secondhand smoke can increase my risk of lung cancer.”
B) “Air pollution can contribute to lung cancer development.”
C) “Lung cancer only affects people who smoke.”
D) “Family history can be a risk factor for lung cancer.”
C) “Lung cancer only affects people who smoke.”
A patient with advanced lung cancer asks the nurse about treatment options. The nurse explains that treatment is usually:
A) Focused solely on surgical removal of the tumor
B) Palliative, including chemotherapy and radiation
C) Limited to antibiotics and steroids
D) Completely curative with early diagnosis
B) Palliative, including chemotherapy and radiation
A patient with HIV develops pneumonia caused by Pneumocystis jirovecii. The nurse understands that this type of pneumonia is classified as:
A) Community-acquired pneumonia
B) Nosocomial pneumonia
C) Opportunistic pneumonia
D) Aspiration pneumonia
C) Opportunistic pneumonia
Which patient is at the highest risk for developing opportunistic pneumonia?
A) A 45-year-old smoker with chronic bronchitis
B) A 50-year-old patient undergoing chemotherapy for leukemia
C) A 30-year-old with seasonal allergies
D) A 60-year-old with a history of well-controlled asthma
B) A 50-year-old patient undergoing chemotherapy for leukemia
The nurse is caring for a patient with Pneumocystis jirovecii pneumonia. Which intervention is the priority?
A) Encouraging increased oral fluid intake
B) Administering broad-spectrum antibiotics
C) Monitoring oxygen saturation levels closely
D) Providing postural drainage therapy
C) Monitoring oxygen saturation levels closely
A nurse is explaining gas exchange to a nursing student. Which statement by the student indicates correct understanding?
A) “Oxygen and carbon dioxide exchange occurs in the bronchi.”
B) “Alveoli are the primary site of gas exchange in the lungs.”
C) “Hemoglobin does not play a role in oxygen transport.”
D) “Gas exchange is independent of ventilation and perfusion.”
B) “Alveoli are the primary site of gas exchange in the lungs.”
The nurse is reviewing arterial blood gas (ABG) results for a patient with chronic obstructive pulmonary disease (COPD). Which ABG value suggests impaired gas exchange?
A) pH 7.40, PaCO₂ 40 mmHg, PaO₂ 90 mmHg
B) pH 7.30, PaCO₂ 55 mmHg, PaO₂ 60 mmHg
C) pH 7.45, PaCO₂ 38 mmHg, PaO₂ 95 mmHg
D) pH 7.38, PaCO₂ 42 mmHg, PaO₂ 92 mmHg
B) pH 7.30, PaCO₂ 55 mmHg, PaO₂ 60 mmHg
A patient with pneumonia has an increased ventilation-perfusion (V/Q) mismatch. The nurse understands this means:
A) The lungs are not effectively perfused with blood
B) Oxygen and carbon dioxide exchange is occurring normally
C) The alveoli are overinflated, improving gas exchange
D) There is no effect on oxygen delivery to tissues
A) The lungs are not effectively perfused with blood
The nurse is providing education to a group of older adults about the importance of the influenza vaccine. Which statement by a participant indicates a need for further teaching?
A) “The flu vaccine can help prevent complications like pneumonia.”
B) “As I get older, my immune system is not as strong, so the vaccine is beneficial.”
C) “I don’t need the flu vaccine because I’ve never had the flu before.”
D) “Older adults are at higher risk for severe flu-related complications.”
C) “I don’t need the flu vaccine because I’ve never had the flu before.”
Which age-related change in the respiratory system makes older adults more susceptible to infections?
A) Increased lung elasticity
B) Enhanced immune system response
C) Decreased sensitivity of chemoreceptors
D) Stronger respiratory muscle function
C) Decreased sensitivity of chemoreceptors
A nurse is educating a 70-year-old patient on ways to maintain respiratory health. Which recommendation is most appropriate?
A) “Avoid getting the flu vaccine to prevent unnecessary side effects.”
B) “Increase physical activity and perform deep breathing exercises regularly.”
C) “Reduce fluid intake to prevent excess lung secretions.”
D) “Ignore any mild cough or shortness of breath, as these are normal with aging.”
B) “Increase physical activity and perform deep breathing exercises regularly.”
A newborn is diagnosed with neonatal respiratory distress syndrome (NRDS) due to insufficient surfactant. The nurse knows surfactant is essential because it:
A) Enhances mucus production to clear the lungs
B) Promotes alveolar collapse during exhalation
C) Reduces surface tension, preventing alveolar collapse
D) Increases airway resistance for better breathing control
C) Reduces surface tension, preventing alveolar collapse
A preterm infant at 28 weeks’ gestation is at risk for respiratory complications due to a deficiency in surfactant. The nurse anticipates which treatment?
A) Administration of broad-spectrum antibiotics
B) Administration of exogenous surfactant therapy
C) Immediate lung transplantation
D) Restricting oxygen therapy to prevent lung damage
B) Administration of exogenous surfactant therapy
The nurse is teaching a student nurse about surfactant production in the lungs. Which statement by the student indicates the need for further teaching?
A) “Surfactant helps keep alveoli open for gas exchange.”
B) “Surfactant is fully developed at 36 weeks of gestation.”
C) “Surfactant increases alveolar surface tension, making breathing easier.”
D) “Premature infants may need surfactant replacement therapy.”
C) “Surfactant increases alveolar surface tension, making breathing easier.”
Which of the following is a common cause of croup in children?
A) Streptococcus pneumoniae
B) Parainfluenza virus
C) Mycoplasma pneumoniae
D) Pseudomonas aeruginosa
B) Parainfluenza virus
A child presents to the emergency department with a barking cough, inspiratory stridor, and hoarseness. Which condition does the nurse suspect?
A) Epiglottitis
B) Asthma
C) Croup
D) Bronchiolitis
C) Croup
Which of the following is a risk factor for developing croup?
A) Exposure to secondhand smoke
B) Genetic predisposition
C) Premature birth
D) Exposure to cold weather
A) Exposure to secondhand smoke
Which condition is a primary risk factor for chronic bronchitis?
A) Allergies
B) Smoking
C) Viral infections
D) Air pollution
B) Smoking
Which of the following is a hallmark manifestation of chronic bronchitis?
A) Dry, hacking cough
B) Non-productive cough
C) Persistent productive cough for at least 3 months in 2 consecutive years
D) Intermittent wheezing
C) Persistent productive cough for at least 3 months in 2 consecutive years
Chronic bronchitis results in which of the following pathophysiological changes?
A) Loss of lung elasticity
B) Air trapping due to alveolar destruction
C) Hypersecretion of mucus and chronic inflammation of bronchi
D) Increased surfactant production
C) Hypersecretion of mucus and chronic inflammation of bronchi