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Pulmonary fibrosis
In a patient with alveolar diffusion impairment due to pulmonary fibrosis, a treatment
that is likely to be helpful is
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oxygen administration
Thick ascending limb of the loop of henle
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reabsorption of 5% of Na+ and Cl-, supports buildup of osmotic
concentraction in the medullary interstitium,
mechanism of sodium and chloride movement: lasix-sensitive Na/K/2Cl
transporter (secondary active tarnsport)
Changes of the respiratory system secondary to a pneumothorax include
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increased chest wall size, and loss of negative intrapleural pressure only
At an average venous PO2 of 40 mmHg, how many oxygen molecules does each
molecule of hemoglobin carry?
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3
,vital capacity
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The total volume of air that can be exhaled after maximal inhalation,
4800ml
Systemic veins O2 and CO2
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40, 46
Allergic reactions that affect airways
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asthma
Glomerular scarring and injury (glomerulonephritis) caused by the deposition of
immune complexes and antibodies in the interrstitium following:
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, streptococcal infections
-viral infections
-systemic lupus erythematosis
-igA nephropathy
an individual with idiopathic pulmonary fibrosis is predicted to have greater difficulty
with ___
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inspiration
Loop of Henle sodium reabsorption is responsible for approximately _____ of total
tubular sodium reabsorption:
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25 %
Autonomic control of airway diameter and resistance
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sympathetic- bronchodilation (epi or norerepi B2 receptors)
parasympathetic- constriction (acetylcholine-muscarinic receptors)