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 C
Explanation
Choice A reason: Nasal mucosa is a portal of entry for cold viruses, not the primary source of spread. Sneezing propels virus-laden droplets, infecting others, making it the greatest spread mechanism, so this is incorrect for the source.
Choice B reason: Conjunctival surfaces can be an entry point but are not the main source of spread. Sneezing disperses viruses widely through respiratory droplets, driving transmission, so this is incorrect for the greatest source.
Choice C reason: Sneezing is the greatest source of cold virus spread, as it releases aerosolized droplets containing viruses, infecting others via inhalation or surface contact. This is the primary transmission mode, making it the correct choice.
Choice D reason: Fingers spread viruses via fomites, but sneezing generates more widespread droplet transmission. Hand contact is secondary to respiratory spread, so this is incorrect for the greatest source of cold virus spread.
Correct Answer is C
Explanation
Choice A reason: Insulin autoantibodies destroying beta cells characterize Type 1 diabetes, an autoimmune condition causing insulin deficiency. Type 2 involves insulin resistance with relative insulin insufficiency, not autoantibody-mediated beta cell destruction, making this an incorrect description.
Choice B reason: Lifelong insulin injections are typical in Type 1 diabetes due to absolute insulin deficiency. Type 2 patients may manage with lifestyle changes, oral medications, or insulin later, but it’s not a defining feature, making this incorrect.
Choice C reason: Type 2 diabetes is characterized by insulin resistance in tissues like muscle and liver, reducing glucose uptake despite normal or elevated insulin levels. This, with eventual beta cell dysfunction, defines the disease, making this the correct description.
Choice D reason: Increased glucagon secretion from alpha cells, not beta cells, may occur in diabetes, but it’s not the primary feature of Type 2. Insulin resistance is the hallmark, with beta cells producing insulin, making this an incorrect description.
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