Identify the port of exit and mechanism for most diseases that are spread by droplet infection.
Digestive system through contaminated feces
Respiratory system by coughing or sneezing
Central nervous system by contaminated cerebral spinal fluid
Urinary system by contaminated urine
The Correct Answer is B
A. Digestive system through contaminated feces:
This is the port of exit for diseases spread by the fecal-oral route (e.g., cholera, hepatitis A).
B. Respiratory system by coughing or sneezing:
Droplet infections (e.g., flu, COVID-19, common cold) are primarily spread through respiratory secretions expelled via coughing or sneezing.
C. Central nervous system by contaminated cerebral spinal fluid:
While CSF can carry infections (e.g., meningitis), it is not a common port of exit.
D. Urinary system by contaminated urine:
Urinary tract infections may be transmitted this way, but not typically through droplets.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Tonsils:
Tonsils are lymphatic tissues located in the pharyngeal region; they are partially encapsulated and help trap airborne or ingested pathogens.
B. Thyroid gland:
The thyroid is an endocrine gland that regulates metabolism, not part of the lymphatic system.
C. Thymus gland:
The thymus is fully encapsulated and located in the mediastinum; it matures T cells.
D. Spleen:
The spleen is a fully encapsulated lymphoid organ located in the left upper quadrant of the abdomen.
Correct Answer is B
Explanation
A. Skin:
The skin is part of the first line of defense, acting as a physical barrier.
B. Phagocytosis:
Phagocytosis, carried out by white blood cells like macrophages and neutrophils, is a component of the second line of defense, which includes non-specific internal immune responses.
C. Coughing:
Coughing is part of the first line of defense-mechanical clearance.
D. Sneezing:
Like coughing, sneezing is a mechanical defense included in the first line.
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