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DIT Quizzes Day 13
Respiratory
70
Other
Professional
05/27/2013

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Term
What is the histological change that takes place in the trachea of a smoker?
Definition
Ciliated columnar epithelium become squamous (metaplasia)
Term
A patient in the ER is having anaphylaxis. You make an incision beneath the thyroid cartilage to establish airway, what structure was cut?
Definition
cricothyroid membrane
Term
What structures traverse the diaphragm and through what vertebral level do they pass?
Definition
T8: IVC
T10: Esophagus, vagus nerve
T12: aorta, thoracic duct, azygous vein
Term
What cell type proliferates during lung damage?
Definition
Type II pneumocytes
Term
What amniotic fluid measurement is indicative of fetal lung maturity?
Definition
lectin to sphingomyelin ratio of > 2.0
Term
A young woman has infertility, recurrent URIs and dextrocardia. Which of her proteins is defective
Definition
Kartagener's syndrome: defective dynein arm (causing nonfunctional ciliated cells)
Term
The following lung volumes are obtained from an elderly smoker:
FRC 5.0L, IRV 1.5L, IC 2.0L, VC 3.5L
What is his total lung capacity?
Definition
7 (FRC +IC)
Term
What substances are known for causing methemoglobinemia?
Definition
Nitrates
Chloroquine, Primaquine
Dapsone, sulfonamides
Local anesthetics
Metoclopramide
Term
A 42 year old woman with fibroids is chronically tired. What is the most likely dx, and what changes have occurred in the O2 content and saturation?
Definition
Dx: woman has anemia because of her fibroids (microcytic anemia)
-no change in O2 content or sat
-not enough hemoglobin to be saturated
Term
A patient is known to have hypoxia and CXR reveals an enlarged heart. What is the most likely cause of hypoxia?
Definition
Heart failure, not perfusing hte lungs well enough to oxygenate the rest of the body
Term
A patient suffers a stroke after incurring multiple long bone fractures in a skiing accident. What likely caused the infarct?
Definition
Fat embolus (going through patent foramen ovale, causing stroke)
Term
A patient with a tibia fracture and no history of COPD or asthma is shown to have hypoxia. CXR is normal. What is the cause of the hypoxia and what disease process does this mimic?
Definition
Could be PE or fat embolus. Most likely PE bc of immobility (broken leg). Mimics an MI
Term
A person presents with asthma attack. What immunologic process is taking place that is responsible for anaphylaxis in this patient
Definition
Antigen crosslinks IgE on presensitive mast cells leads to release of leukotrienes and histamine which cause inflammation and bronchoconstriction
Term
What asthma medication fits the following statement:
Inhaled treatment of choice for chronic asthma
Definition
Inhaled steroid (Beclomethasone, prednisone)
Term
What asthma medication fits the following statement:
Inhaled treatment of choice for acute exacerbations
Definition
albuterol (Beta2 agonist)
Term
What asthma medication fits the following statement:
Narrow therapeutic index, drug of last resort
Definition
Theophylline (Methylxanthine, inhibits phosphodiesterase)
Term
What asthma medication fits the following statement:
Blocks the conversion of arachidonic acid to leukotriene
Definition
Zileuton
Term
What asthma medication fits the following statement:
Inhibits mast cell release of mediators; used for prophylaxis only
Definition
Cromolyn
Term
What asthma medication fits the following statement:
Inhaled treatment that blocks muscarininc receptors
Definition
Ipratropium
Term
What asthma medication fits the following statement:
Inhaled long acting B2 agonist
Definition
Salmeterol
Term
What asthma medication fits the following statement:
Blocks leukotriene receptors
Definition
Zafirlukast (>5yrs old), Montelukast (>1year old)
Term
A patient has an extended respiratory phase. What is the disease process
Definition
Obstructive lung disease
Term
What are the 1st generation H1 blockers?
Definition
Diphenhydramine, Dimenhydrinate, chlorpheniramine
Term
What are the 2nd generation H1 blockers?
Definition
Loratadine, fexofenadine, desloratadine, cetirizine
Term
What are the H1 blockers uses?
Definition
1st gen: Allergy, Motion sickness, sleep aid

2nd gen: Allergy (non-drowsy)
Term
H and E of lung biopsy from a plumber shows elongated structures with clubbed ends in tissue. What is the dx and what is he at risk for?
Definition
Ferruginous bodies seen in asbestosis; increased risk for bronchogenic carcinoma and mesothelioma
Term
Preterm infant has difficulty breathing. Xray reveals a diffuse ground glass appearance with air bronchograms. What is the dx and what could have prevented this condition?
Definition
Neonatal respiratory distress syndrome
-prevent with maternal steroids prior to delivery
Term
A pt develops ARDS from an occupational inhalation of nitrous oxide. What histologic changes are seen in a person recovering from ARDS?
Definition
Type II pneumocytes proliferate
Term
A tall thin teenaged male has abrupt onset of dyspnes and left-sided chest pain. Percussion on the affected side reveals hyperresonance, and breath sounds are diminished. What is the dx?
Definition
Spontaneous pneumothorax. Trachea deviates to the ipsilateral side
Term
What are the clinical findings of pleural effusion
Definition
decreased breath sounds. Dullness to percussion, decreased fremitus
Term
CXR shows collapse of middle lobe of right lung and mass in the R bronchus. Pt has hx of recurrent pneumonias. What is the dx?
Definition
Carcinoma of the lung (bronchogenic)
Term
A patient of yours developed bronchogenic lung cancer, but has never smoked. He is a coal miner. Exposure to what substance has out him at risk for this cancer?
Definition
Radon (heavy gas settles in coal mines)
Term
What complications can arise from lung cancer?
Definition
SPHERE:
Superior Vena Cava syndrome
Pancoast tumor
Horner's syndrome
Endocrine (paraneoplastic)
Recurrent laryngeal symptoms
Effusions (pleural or pericardial)
Term
What infectious agent fits the following description:
Common cause of pneumonia in immunocompromised patients
Definition
Pneumocystis jiroveci
Term
What infectious agent fits the following description:
Most common cause of atypical/ walking pneumonia
Definition
Mycoplasma pneumonia
Term
What infectious agent fits the following description:
Common causative agent for pneumonia in alcoholics
Definition
Klebsiella pneumoniae
Term
What infectious agent fits the following description:
Can cause an interstitial pneumonia in bird handlers
Definition
Chlamydia psittaci
Term
What infectious agent fits the following description:
Often the cause of pneumonia in a person with a hx of exposure to bat droppings
Definition
Histoplasmosis
Term
What infectious agent fits the following description:
Often the cause of pneumonia in a patient who has recently visited Southern California, New Mexico, or West Texas
Definition
Coccidioides
Term
What infectious agent fits the following description:
Pneumonia a/w currant jelly sputum
Definition
Klebsiella
Term
What infectious agent fits the following description:
Q fever
Definition
Coxiella burnetti
Term
What infectious agent fits the following description:
A/w pneumonia acquired from air conditioners
Definition
Legionella
Term
What infectious agent fits the following description:
Most common cause of pneumonia in children < 1 year of age
Definition
RSV
Term
What infectious agent fits the following description:
Most common cause of pneumonia in children and young adults
Definition
Mycoplasma
Term
What infectious agent fits the following description:
Most common cause of pneumonia in neonate
Definition
GBS or E.coli
Term
What infectious agent fits the following description:
Common cause of pneumonia in patients with other health problems
Definition
Klebsiella
Term
What infectious agent fits the following description:
Most common cause of viral pneumonia
Definition
RSV
Term
What infectious agent fits the following description:
Causes wool-sorter's disease
Definition
Bacillus anthracis
Term
What infectious agent fits the following description:
Endogenous flora in 20% of adults
Definition
Strep pneumo
Term
What infectious agent fits the following description:
Common bacterial cause of COPD exacerbation
Definition
H. influenza
Term
What infectious agent fits the following description:
Common cause of pneumonia in ventilator patients and those with CF?
Definition
Pseudomonas
Term
What infectious agent fits the following description:
Pontiac fever
Definition
Legionella
Term
Examination of a lung at autopsy reveals a peripheral lesion with caseous necrosis. Dx?
Definition
Tuberculosis
Term
What pathology is associated with the following statement:
Most common cause of SIADH
Definition
Small cell lung cancer
Brain injury/insult
Term
What pathology is associated with the following statement:
Most common testicular tumor
Definition
Seminoma
Term
What pathology is associated with the following statement:
Most common tumor of infancy
Definition
Hemangioma (regresses)
Term
What pathology is associated with the following statement:
translocation 9;22 and drug used to treat
Definition
Philadelphia chromosome; CML
drug: Imatinib
Term
What is the triad of Kartagener's syndrome? What is the underlying defect
Definition
defect in dynein arm
1.Sterility
2.bronchiectasis
3.sinusitis
Term
What are the 3 most common locations of lung cancer mets?
Definition
adrenals, Brain, bone, liver
Term
What is the V/Q at the apex and base of lung?
Definition
Apex: 3 (ventilation better than perfusion)

Base: 0.6 (perfused better than ventilated)
Term
What is the V/Q during airway obstruction?
Definition
Approaches 0 (V=0)
Term
What is the V/Q during blood flow obstruction?
Definition
Approaches infinity (Q=0)
Term
How does the emphysema caused by smoking differ from the emphysema caused by a1-antitrypsin deficiency?
Definition
Smoking = centriacinar
a1-antitrypsin def = panacinar
Term
What is the hallmark sign of COPD?
Definition
Decreased FEV1/FVC ratio
Term
What is the hallmark sign of restrictive lung disease?
Definition
Normal to elevated FEV1/FVC ratio
Term
What tumors arise centrally in the lung and are a/w smoking?
Definition
Small cell carcinoma; squamous cell carcinoma
Term
Which tumors arise peripherally in the lung and are less linked to smoking?
Definition
Adenocarcinoma
Large lung cell carcinoma
Term
How does the body compensate for hypoxia at high altitude?
Definition
Increased ventilation
Make more RBCs
Increased 2-3DPG
Increase mitochondria
Increase renal excretion of HCO3
Term
What are common causes of ARDS?
Definition
Trauma, sepsis, shock, gastric aspiration, uremia, acute pancreatitis, amniotic fluid embolism
Term
What are the causes of pulsus paradoxus?
Definition
Asthma
COPD
Croup
Cardiac tamponade
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