A medical assistant should encourage patients to wear masks when which of the following respiratory infections is prevalent?
Influenza
Legionnaires' disease
Cystic fibrosis
Laryngitis
The Correct Answer is A
A. Influenza: Influenza is a contagious respiratory infection that spreads through respiratory droplets. Wearing a mask can help prevent the spread of the virus, especially in public settings or during an outbreak.
B. Legionnaires' disease: Legionnaires' disease is a bacterial infection caused by inhaling aerosolized water contaminated with Legionella bacteria. It is not typically spread from person to person, so mask-wearing is not a usual precaution.
C. Cystic fibrosis: Cystic fibrosis is a genetic condition that affects the lungs but is not contagious. Patients with cystic fibrosis are not required to wear masks to prevent spreading it to others.
D. Laryngitis: Laryngitis is usually caused by viral infections or strain on the vocal cords. It is not typically contagious enough to warrant mask use.
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Correct Answer is C
Explanation
A. Microvilli: Microvilli are cellular extensions found on the surface of some cells, not inside the cell.
B. Cilia: Cilia are projections on the cell surface and are not located inside the cell.
C. Cytoplasm: The cytoplasm is the gel-like substance inside the cell membrane that contains organelles and other cellular components.
D. Interstitial fluid: Interstitial fluid is found outside the cells, in the spaces between cells, not inside the cell itself.
Correct Answer is C
Explanation
A. Urine specimen volume is 6 mL: A volume of 6 mL is generally sufficient for routine urinalysis, so this would not cause rejection.
B. Urine specimen temperature is 23° C (73.4° F): This temperature is within an acceptable range for a urine specimen that has been properly stored, so it would not cause rejection.
C. Urine specimen container is missing a preservative. Missing a preservative in the container can compromise the integrity of the specimen, leading to rejection.
D. Urine specimen is amber and turbid: Amber color and turbidity may indicate an abnormality, but they are not causes for specimen rejection in routine urinalysis.