After studying about viruses, which information indicates the student has a good understanding of viruses?

Replicate their genetic material inside host cells

Are easily killed by antimicrobials

Contain no DNA or RNA

Are capable of independent reproduction

Answer and Explanation

The Correct Answer is A

Choice A reason:
Viruses are known for their unique replication process. They cannot replicate independently and must hijack a host cell's machinery to reproduce. This characteristic is fundamental to understanding viruses and is a key concept in virology. By replicating their genetic material inside host cells, viruses ensure their propagation and survival. This answer is correct because it highlights this crucial aspect of viral biology.
Choice B reason:
This choice is incorrect because viruses are not easily killed by antimicrobials. Antimicrobials, such as antibiotics, are typically effective against bacteria, not viruses. Viruses have different structures and replication mechanisms that make them resistant to these treatments. Instead, antiviral medications are needed to target viruses specifically.
Choice C reason:
This choice is also incorrect. Viruses do contain either DNA or RNA as their genetic material. This genetic material is essential for their replication and propagation. Some viruses have DNA, while others have RNA, and this distinction is one of the primary ways viruses are classified.
Choice D reason:
Viruses are not capable of independent reproduction. They rely entirely on infecting host cells to replicate. This dependence on host cells distinguishes them from other microorganisms like bacteria, which can reproduce on their own. Thus, this choice is incorrect as it does not accurately reflect the nature of viruses.

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Correct Answer is A

Explanation

Choice A reason:
Lactulose is the medication of choice for treating elevated ammonia levels, commonly seen in hepatic encephalopathy associated with cirrhosis. It works by reducing the absorption of ammonia from the intestines, converting ammonia to ammonium, which is then excreted. Administering lactulose helps in lowering blood ammonia levels and improving mental status in affected patients.

Choice B reason:
Polyethylene glycol (MiraLax) is a laxative used to treat constipation. It does not have any role in reducing ammonia levels or treating hepatic encephalopathy. Therefore, it is not appropriate for this patient's elevated ammonia condition.

Choice C reason:
0.9% NS (normal saline) is primarily used for fluid resuscitation and electrolyte balance. While essential in managing cirrhotic patients with fluid imbalances, it does not address the elevated ammonia levels directly. Therefore, it is not the treatment of choice for this specific situation.

Choice D reason:
Docusate sodium (Colace) is a stool softener used to treat constipation. It does not have any effect on ammonia levels or the treatment of hepatic encephalopathy. Thus, it is not appropriate for managing elevated ammonia in this patient.

A. Nonadherence to the antiviral regimen B. Allergic reaction C. Pancreatic infiltration by HIV D. Hyperglycemia

Correct Answer is D

Explanation

Choice A reason:
Nonadherence to the antiviral regimen could result in suboptimal control of the HIV infection, but it is not typically associated with symptoms of increased hunger, thirst, and frequent urination. Therefore, this choice does not explain the patient's symptoms.
Choice B reason:
An allergic reaction might cause a variety of symptoms, such as rash, itching, or swelling, but it would not typically cause increased hunger, thirst, and frequent urination. This choice is incorrect as it does not align with the presented symptoms.
Choice C reason:
Pancreatic infiltration by HIV is a rare and serious condition that can lead to various metabolic complications, but it is not a common cause of the specific symptoms described (increased hunger, thirst, and frequent urination). This choice is not consistent with the patient's symptoms.
Choice D reason:
Hyperglycemia, or high blood sugar, can cause symptoms like increased hunger, thirst, and frequent urination. These symptoms are indicative of diabetes, which can be a side effect of some antiviral medications, particularly protease inhibitors used in HIV treatment. Therefore, this choice accurately reflects the patient's symptoms and is the correct answer.

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After studying about viruses, which information indicates the student has a good understanding of viruses?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A patient with a history of chronic alcohol abuse has been admitted to the unit with cirrhosis. Upon review of the patient's laboratory test results, the nurse notes that the patient's ammonia level is elevated at 218 mcg/dL. What medication should the nurse prepare to administer?

Correct Answer is A

Explanation

After starting an antiviral protease inhibitor, a patient with HIV telephones the nurse, complaining, "I'm so hungry and thirsty all the time! I'm urinating 10 or 12 times a day." The nurse recognizes these findings to be consistent with:

Correct Answer is D

Explanation

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