Which of the following best describes the primary characteristic of obsessive-compulsive disorder (OCD)?
Rapid mood swings
Social withdrawal and isolation
Persistent, unwanted thoughts and repetitive behaviors
Hallucinations and delusions
The Correct Answer is C
Choice A reason: Rapid mood swings are characteristic of bipolar disorder, not OCD. OCD involves intrusive thoughts and compulsive behaviors, like Marty’s hand washing, so this is incorrect for OCD’s primary feature.
Choice B reason: Social withdrawal is more typical of depression or schizophrenia, not OCD. Marty’s persistent thoughts and rituals define OCD, making this incorrect for the disorder’s main characteristic.
Choice C reason: OCD is defined by persistent, unwanted thoughts (obsessions) and repetitive behaviors (compulsions), as seen in Marty’s germ fears and hand washing. This is the correct primary characteristic of OCD.
Choice D reason: Hallucinations and delusions are associated with psychotic disorders, not OCD. Marty’s intrusive thoughts and rituals are classic OCD symptoms, so this is incorrect for the primary feature.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A reason: Vasodilation increases blood flow, causing redness and heat, but doesn’t directly cause fluid leakage. Increased capillary permeability allows fluid to escape into tissues, causing edema, so this is incorrect for the primary cause of inflammatory edema.
Choice B reason: Increased capillary permeability, triggered by inflammatory mediators, allows plasma to leak into tissues, causing edema. This is the primary mechanism during inflammation, making it the correct choice for the cause of edema in the process.
Choice C reason: Neutrophil emigration fights infection but doesn’t directly cause fluid accumulation. Capillary permeability changes lead to edema, so this is incorrect for the cause of swelling in inflammation.
Choice D reason: Endothelial cell contraction contributes to permeability but is a secondary mechanism. Increased capillary permeability is the overarching process causing fluid leakage and edema, so this is less precise and incorrect.
Correct Answer is D
Explanation
Choice A reason: Active lifestyle and community engagement are protective, not risk factors, for hip fractures. Small frame and age-related bone loss increase fracture risk, so this misidentifies beneficial factors as risks and is incorrect.
Choice B reason: Active lifestyle and social engagement may reduce risk, but the question asks for risk factors. Small frame and age-related bone loss are primary risks for Ms. Major’s fracture, so this is incorrect.
Choice C reason: Healthy diet and social support are protective, not risk factors. Ms. Major’s small frame and age (60) increase bone density loss, elevating fracture risk, so this is incorrect.
Choice D reason: Small frame and age-related bone density loss (at 60) increase Ms. Major’s hip fracture risk, as lower bone mass and aging weaken bones. These are key risk factors, making this correct.
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