Contemporary treatment of HIV infection requires the use of two nucleoside reverse transcriptase inhibitors (NRTI) combined with either a non-nucleoside reverse transcriptase inhibitors or a protease inhibitor. Which of the following NRTI backbones will you prefer to use in a patient recently diagnosed with HIV-associated dementia: a. Zidovudine plus stavudine b. Zidovudine plus lamivudine c. Zalcitabine plus didanosine d. Zalcitabine plus lamivudine e. Didanosine plus tenofovir

Short Answer

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a. Zidovudine plus stavudine b. Zidovudine plus lamivudine c. Zalcitabine plus didanosine d. Zalcitabine plus lamivudine e. Didanosine plus tenofovir Answer: b. Zidovudine plus lamivudine

Step by step solution

01

Review the list of NRTI backbones

Compare the given NRTI backbones to determine which would be most appropriate for a patient with HIV-associated dementia: a. Zidovudine plus stavudine b. Zidovudine plus lamivudine c. Zalcitabine plus didanosine d. Zalcitabine plus lamivudine e. Didanosine plus tenofovir
02

Consider the potential side effects and drug interactions

When selecting an appropriate NRTI backbone, it is essential to consider the potential side effects and drug interactions of each option. This varies for each patient; therefore, the specific needs of a patient with HIV-associated dementia must be taken into account.
03

Compare the effectiveness for HIV-associated dementia

After considering side effects and drug interactions, focus on comparing the effectiveness of the given NRTI combinations in treating HIV-associated dementia. Research and clinical guidelines may help in determining which of these combinations have shown more promise in treating HIV-associated dementia.
04

Choose the preferred NRTI backbone

Based on your understanding of side effects, drug interactions, and effectiveness, choose the NRTI backbone that you believe is the most suitable option for a patient recently diagnosed with HIV-associated dementia. In this case, the preferred NRTI backbone for a patient recently diagnosed with HIV-associated dementia is: b. Zidovudine plus lamivudine Zidovudine (AZT) has good central nervous system (CNS) penetration, which is crucial for treating HIV-associated dementia as it requires the drug to cross the blood-brain barrier. Lamivudine (3TC) is also known to have good CNS penetration and is effective when combined with zidovudine. Other combinations may not be as effective in treating HIV-associated dementia, or may have unfavorable side effects or drug interactions.

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Most popular questions from this chapter

What is correct about the "Trojan Horse" model of HIV invasion into the CNS? a. Proposes that monocyte-macrophage carry progeny virions from blood to the brain inside cytoplasmic vacuoles and across the blood-brain barrier b. Requires an inflammatory response in the brain, which elicits a chemokine gradient c. After infiltrating the brain parenchyma, blood borne monocyte-macrophages also release additional chemokines and further attract additional inflammatory cells d. Does not require productive viral replication in brain microvascular endothelial cells e. All of the above

Which of the following nucleoside reverse transcriptase inhibitors has the best penetration into CSF? a. Zidovudine b. Didanosine c. Lamivudine d. Stavudine e. Abacavir

Which of the following drugs has been proven to be effective as adjuvant therapy for HIV associated dementia? a. Lexipafant b. Memantine c. Minocylcine d. Nimodipine e. None of the above f. All of the above

Which of the following class of drugs is not recommended for first line therapy in patients with HIVassociated dementia? a. Nucleoside reverse transcriptase inhibitors b. Non-nucleoside reverse transcriptase inhibitors c. Protease inhibitors d. Entry inhibitors e. All can be used as first line agents in the treatment of HAD

Abacavir plus lamivudine plus zidovudine, which is commercially available as a fixed combination in a single tablet, has inferior rates of viral suppression and should only be used when an NNRTI or a PI-based regimen cannot or should not be used as first line of therapy. True/False

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