The healthcare provider prescribes penicillin 200,000 units IM for a client with pneumonia. The available vial is labeled, "Penicillin 500,000 units/mL. How many mL should the nurse administer to this client?

(Enter numerical value only. If rounding is required, round to the nearest tenth.)

A. Collecting the blood sample from a reddened and engorged fingertip may lead to inaccurate glucose readings and can cause discomfort to the client. Selecting another finger is a more appropriate action.

B. Selecting another finger ensures an accurate blood sample and minimizes discomfort to the client. It allows for a fresh puncture site that is not engorged, improving the accuracy of the glucose reading.

C. Applying pressure to the site may temporarily reduce engorgement but may not be sufficient to obtain an accurate blood sample. Selecting another finger is a more appropriate action.

D. Assessing radial pulse volume is not necessary in this situation, as the client's fingertip appearance does not indicate compromise of peripheral circulation.

A. This intervention is likely to be ordered due to the patient's fever and elevated heart rate, which may suggest dehydration or the need for increased fluid intake to support hemodynamic stability and mitigate the effects of fever and potential dehydration from fever and nausea.

B. Given the diagnosis of Pneumocystis pneumonia, the patient will likely be on or start antibiotics specific to this infection, such as trimethoprim-sulfamethoxazole. Monitoring for adverse reactions is crucial, especially in a newly diagnosed HIV- positive patient who might be starting multiple new medications.
C. While it is important to monitor CD4 counts in HIV-positive patients to guide treatment decisions, repeating the CD4 count immediately might not be prioritized unless there are specific clinical changes that suggest a rapid decline in immune function. Given the recent test results showing a CD4 count of 443 cells/mm^3, immediate retesting might not be clinically justified unless guided by other symptoms or considerations not detailed here.
D. Pneumocystis pneumonia does not require airborne isolation as it is not typically contagious between people under normal circumstances. Instead, it arises as an opportunistic infection in individuals with weakened immune systems. Hence, this order would not be appropriate unless there were other infections suspected that require such precautions.
E. The patient reports severe nausea, which not only is distressing but can also prevent the patient from taking oral medications and maintain necessary nutrition. Administering an antiemetic can help manage this symptom effectively.