Which class of antiretroviral drugs targets the stage of the HIV lifecycle by inhibiting RNA from forming DNA?
Fusion Inhibitors
Integrase Inhibitors
Nucleoside Reverse Transcriptase Inhibitors (NRTIs)
Protease Inhibitors
The Correct Answer is C
A. Fusion Inhibitors work by preventing the virus from entering the host's cells but do not inhibit RNA from forming DNA.
B. Integrase Inhibitors block the integration of viral DNA into the host's DNA but do not directly inhibit the reverse transcription process.
C. Nucleoside Reverse Transcriptase Inhibitors (NRTIs) inhibit reverse transcriptase, the enzyme responsible for converting viral RNA into DNA, thus directly targeting this crucial stage of the HIV lifecycle.
D. Protease Inhibitors inhibit the protease enzyme involved in the maturation of the virus but do not affect the reverse transcription process.
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Correct Answer is B
Explanation
A. Flushing of the skin is not typical in hypovolemic shock; rather, the skin is usually cool and clammy due to vasoconstriction.
B. Oliguria, or decreased urine output, is expected in hypovolemic shock as the kidneys receive less blood flow, leading to reduced urine production.
C. Bradypnea is not a common finding in hypovolemic shock; instead, tachypnea (increased respiratory rate) is typically observed due to compensatory mechanisms for hypoxia and acidosis.
D. Hypertension is not expected in hypovolemic shock; instead, the client typically presents with hypotension due to decreased blood volume and pressure.
Correct Answer is B
Explanation
A. Respiratory alkalosis is characterized by a high pH and low PaCO2, which is not evident in this scenario where the pH is low and PaCO2 is elevated.
B. The low pH of 7.3 indicates acidemia, and the elevated PaCO2 of 50 mm Hg suggests respiratory acidosis, where the body is retaining carbon dioxide, leading to an increase in acidity.
C. Metabolic acidosis would present with a low pH and a normal or decreased PaCO2, which is not the case here since the PaCO2 is elevated.
D. Metabolic alkalosis would show a high pH and elevated HCO3 levels, which is not consistent with the given ABG results.