Looking for Cystic Fibrosis practice questions that can help prepare you for everything you need to know about Cystic Fibrosis in Respiratory Therapy school? I sure hope so, because in this study guide (as you will see below), we have compiled some of the absolute best practice questions for you here.
As a Respiratory Therapy student, now is the time to learn all about Cystic Fibrosis because it is a disease that you will see in your patients once you start working as a Respiratory Therapist. Not to mention, you will need to know all about Cystic Fibrosis whenever you take the TMC Exam as well.
So I hope you can use these practice questions listed below to gain the knowledge you need no matter where you are on your journey. So are you ready to get started?
Cystic Fibrosis Practice Questions:
1. What is cystic fibrosis?
It is a hereditary disease characterized by lung congestion and infection along with malabsorption of nutrients by the pancreas. A multifaceted disease caused by genetically defective chloride ions in the apical surface of the epithelial lining resulting in impaired chloride-flow across membranes through the cystic fibrosis conductance regulator (CFTR) channel.
2. What happens in cystic fibrosis?
Mucus clogs the lungs leading to chronic respiratory infections and mucus obstructs the ducts of the pancreas preventing digestive enzymes from reaching the intestines.
3. What system is cystic fibrosis a dysfunction of?
The exocrine system.
4. What causes the thick secretions in cystic fibrosis?
The disruption of the chloride transport causes the thick secretions in cystic fibrosis. Sodium is absorbed in the airways, pancreas, and bile ducts.
5. Which ethnicity is mostly like to be a carrier of the Cystic Fibrosis Transmembrane (CFTR) gene?
Caucasian/white people are most likely to be the carrier of this gene.
6. What would the x-ray look like for patients with cystic fibrosis?
Translucencies, enlarged heart, and a flattened diaphragm.
7. How is cystic fibrosis diagnosed?
Sweat chloride test is performed to screen for cystic fibrosis.
8. What two infections do we mainly see present in cystic fibrosis?
Staphylococcus Aureus and Pseudomonas.
9. What common respiratory issues does a cystic fibrosis patient have?
Atelectasis, bronchial hyperreactive, asthma, hemoptysis, pneumothorax, pulmonary hypertension, respiratory failure, sleep breathing problems and symptomatic rhinosinusitis.
10. Aside from respiratory issues, what other clinical condition does a cystic fibrosis patient have?
Anemia, appendicitis and cystic fibrosis-related diabetes (CFRD) due to the scarring of the pancreas. Studies show that 75% of adult suffering from cystic fibrosis has a gallbladder disease, gastroesophageal reflux disease (GERD), malnutrition, growth failure, infertility, pancreatitis and meconium ileus.
11. How many positive results should one have to be diagnosed as suffering from cystic fibrosis?
Two positive results.
12. What are the common signs and symptoms of cystic fibrosis?
Salty sweat, residue on skin and/or clothes, abdominal distention and cramping, fatty stools and malnutrition even with ravenous appetite (FTT). Pulmonary indications include advanced chronic obstructive pulmonary disease (COPD), hypercapnia and severe hypoxemia when the disease is very advanced.
13. How can you manage patients with cystic fibrosis?
Most patients suffering from cystic fibrosis are treated with
14. What are other treatments available for cystic fibrosis?
Lung transplant, gene replacement, vitamins, food supplements and oxygen (when necessary).
15. What is the prognosis for cystic fibrosis patients?
The disease has no cure but can be managed. According to a study conducted in 2017, the life expectancy of a person suffering from this condition is 37.5 years compared to 32 years in 2000 and 36.5 years in 2009. This shows that treatment and management for this disease continue to develop effectively.
16. What deficiencies does cystic fibrosis involve?
17. What is the typical arterial blood gas (ABG)’s for a patient with cystic fibrosis?
A mixed of respiratory acidosis and metabolic alkalosis is the typical ABG of cystic fibrosis.
18. What kind of disease is cystic fibrosis?
It is an inherited obstructive disease.
19. Where can you find the defective gene for cystic fibrosis?
It is found on Chromosome 7.
20. What are the commonly cultured organisms in the airways of the patients with cystic fibrosis?
21. What is the major pathologic structure associated with cystic fibrosis?
The major pathologic structure of this disease is hyperinflation, thick tenacious mucus and airways obstruction leading to atelectasis.
22. What common indication of a person with cystic fibrosis?
They present as malnourished, with excessive secretions, and suffering from meconium ileus (bowel obstruction).
23. What symptom of cystic fibrosis common to men?
24. What are the chances that a child will be a carrier of cystic fibrosis gene if both mother and father are carriers?
There is a 50% chance that the child will be a carrier.
25. What are the chances that a child will inherit cystic fibrosis if both mother and father are carriers of the cystic fibrosis gene?
There is a 25% chance that the child will have cystic fibrosis.
26. What are the chances of a child not inheriting the cystic fibrosis if both mother and father are carriers of the cystic fibrosis gene?
There is a 25% chance that the child will not inherit cystic fibrosis.
27. What condition do patients with cystic fibrosis have on their fingers and toes?
Clubbing of the fingers and toes are present
28. What is the cause of clubbing?
Clubbing is mainly caused by chronically low levels of oxygen.
29. What is the median age of survival of the people with cystic fibrosis?
30. What test is used to diagnose cystic fibrosis?
An elevated sweat chloride test is performed to diagnose cystic fibrosis.
31. What are the four commonly used therapies in the management of cystic fibrosis?
Oral enzymes and vitamins, Antibiotics, Postural drainage, Expectorants.
32. A cystic fibrosis patient appears malnourished even on what kind of diet?
A high-calorie diet.
33. Lung infections with Pseudomonas aeruginosa are most often treated with this antibiotic. What is the name of this antibiotic?
34. A cystic fibrosis patient in generally good condition may be a candidate for what surgical procedure?
35. What is the percussion note of the cystic fibrosis patient?
Hyper-resonant percussion note.
36. What are typical breath sounds of cystic fibrosis patient?
37. Vocal and tactile fremitus is related to trapped air. Trapped air causes tactile and vocal fremitus to be?
38. What is a common non-respiratory clinical manifestation of cystic fibrosis?
39. What supplementary vitamins does cystic fibrosis patient must have?
A, E, D, and K.
40. Cystic fibrosis patients can have chest percussion done manually. What new therapy is available for cystic fibrosis patients?
41. The Respiratory Therapist may aerosolize and administer drugs that helps thin secretions. What are the two drug options that can be used?
DNAse or Pulmozyme.
42. What contributes to bone disease among individuals with cystic fibrosis?
Malabsorption of vitamins D and K, failure to thrive, delayed puberty, physical inactivity and use of corticosteroid medicines.
43. What protein is responsible for cystic fibrosis?
Cystic Fibrosis transmembrane conductance regulator protein.
44. What are the four reasons associated with poor appetite among children with cystic fibrosis?
Poor appetite in children with cystic fibrosis is a result of depression, anxiety, fatigue
45. How can the enzyme tablets be administered to infants and young children?
It can be mixed with soft acidic food.
46. What are the side effects of oral corticosteroids, a steroid used among children with persistent severe asthma?
Glucose intolerance should be monitored as it may lead to overt cystic fibrosis-related diabetes. Growth failure and hypertension are other side effects of this.
47. What is the probability for every pregnancy that the child will have cystic fibrosis if both parents carry the cystic fibrosis gene?
One in four children will inherit the disease.
48. What is the average life expectancy of people with cystic fibrosis now compared to the past?
The average life expectancy for people with cystic fibrosis now is 45 years. This had increased
49. Eighty-five percent of the total population of patients with cystic fibrosis has this condition?
50. What are the two linked clinical manifestations of cystic fibrosis?
Meconium Ileus and distal intestinal obstructive syndrome.
51. What lung and upper respiratory tract diseases are associated with cystic fibrosis?
A person suffering from cystic fibrosis will show
52. What gene is responsible for the cystic fibrosis transmembrane conductance regulator (CFTR) protein (channel)?
Cystic fibrosis transmembrane conductance regulator (CFTR) gene.
53. What is the most common amino acid that is deleted from the channel protein in cystic fibrosis?
Phenylalanine changes the structure of the CFTR (cystic fibrosis transmembrane conductance regulator) protein (channel) in a way that it can no longer transport chloride.
54. What is the result of impaired Cl (chloride) – flow due to the defective chloride ions and their ability to flow across membranes?
Disordered secretion and reabsorption resulting in higher than normal chloride levels in sweat and thicker than normal mucus in
55. What cellular mechanism takes place within the sweat glands of cystic fibrosis patients?
There is an inhibited chloride reabsorption that results in inhibited sodium reabsorption which makes sweat saltier than normal.
56. Why does a patient with cystic fibrosis have saltier sweat?
Sweat is usually mostly water, as chloride and sodium ions are normally reabsorbed. Human
57. What is the typical body osmolarity?
58. How would you explain the “low-volume” model as a result of cystic fibrosis?
In the “low-volume” model, the chloride channel is involved in chloride outflow into the mucus that somewhat traps the sodium and water, retaining its fluidity. Normally, a significant amount of chloride remains in the mucus, causing sodium and water to remain in the mucus. In the cystic fibrosis patient, there are not enough chloride outflows into the mucus. This results in
59. What two organs are greatly affected by the thickened mucus in cystic fibrosis patients?
Lungs and pancreas.
60. What happens in the lungs as a result of thickened mucus?
Bronchiectasis is a result of thickened mucus that stays in the bronchioles and physically pushes them open, distending them and causing them to widen. The result is permanent and eventually leads to fibrosis of these bronchioles. Pulmonary infections
61. How does mucous affect cilia?
Flattens the cilia
62. How are lungs affected by cystic fibrosis?
Decreased chloride secretion from epithelial lining cells in the airway lumen cause thinning of
63. How is cystic fibrosis manifested in the lungs? How does it progress as the patient get older? What is the primary pathogen with cystic fibrosis?
Cystic fibrosis is manifested in lungs as acute exacerbations that include
Pulmonary function is often preserved until adolescence. A steep decline can occur at this point. By late adolescence, most patients have a daily productive cough.
Airway infection with
64. How are sinuses affected by cystic fibrosis?
Nasal and sinus polyps
65. How is cystic fibrosis manifested in sinuses?
Pan-sinusitis and nasal polyposis
66. How is cystic fibrosis diagnosed?
If newborn screening is positive, a cystic fibrosis genetic panel is done followed by a sweat chloride test and a complete CFTR exon sequencing.
67. What mucolytic agents are given for cystic fibrosis?
Dornase alfa and hypertonic saline.
68. What is the brand name for dornase alfa?
69. How does Pulmozyme work?
It breaks down extracellular DNA, decreased mucus viscosity and increased expectoration of mucus.
70. Which antibiotics are used to treat cystic fibrosis?
Tobramycin (TOBI), aztreonam (Cayston) and
71. How is tobramycin taken?
300 mg BID for 28 days.
72. What is tobramycin dose?
10 mg/kg/dose IV q 24h. Use traditional dosing in patients with renal dysfunction.
73. When are tobramycin levels checked?
Two and ten hours after infusion. Peak concentration is 20-30 mcg/mL.
74. What is the pathophysiology of cystic fibrosis?
Mutation in chloride transport leading to thick secretions from the exocrine glands and blockage of secretory ducts.
75. What are the clinical features of cystic fibrosis?
Severe lung disease, pancreatic insufficiency diabetes, azoospermia, chronic lung infections, usually
76. What tests are given for cystic fibrosis?
Sweat chloride test, pulmonary function test (PFT), arterial blood gas (ABG), and chest x-ray (CXR).
77. What results of sweat chloride test indicate cystic fibrosis?
Increased concentrations of NaCl (sodium chloride) and K (potassium) in the sweat.
78. What will be the result of the PFT (pulmonary function test) in cystic fibrosis?
Decreased airways leading to airflow obstruction.
79. What can be observed in the chest x-ray of a person suffering from cystic fibrosis?
Hyperinflation and increased pulmonary markings.
80. What ABG results are seen in severe cystic fibrosis?
Hypoxemia and hypercapnia.
81. What methods are generally used to manage cystic fibrosis?
Chest physiotherapy for secretion drainage, pancreatic enzyme replacement, administration of salbutamol and ipratropium bromide, inhalation of hypertonic saline or DNAsa, and antibiotics for infectious exacerbations.
82. What is the gold standard management treatment for cystic fibrosis?
So there you have it. I hope that you were able to learn everything you need to know by going through these Cystic Fibrosis practice questions. I know that if you read through these a time or two, you can easily learn what’s required for you to know and more.
Thanks for reading and I wish you the best of luck on your journey to becoming a Respiratory Therapist, and as always, breathe easy my friend.