The practical nurse (PN) is preparing cefazolin 400 mg IM for a client with a gram-positive infection. The available vial is labeled, "Cefazolin 1 gram," and the instructions for reconstitution state, for IM use, add 2 mL sterile water for injection. The total volume after reconstitution is 2.5 mL.

After reconstitution, how many mL should be administered to the client?

(Enter numeric value only. If rounding is required, round to the whole number, nearest tenths/hundredth).

The client is prescribed oxygen at 3 liters per minute, but the flowmeter shows that only 1 liter of oxygen is being delivered. This indicates an inadequate oxygen supply and immediate action is required to adjust the flow rate to meet the prescribed oxygen requirement. Failure to provide the appropriate oxygen flow rate can compromise the client's respiratory status and oxygenation. The PN should promptly increase the flow rate to the prescribed level to ensure the client receives the necessary oxygen therapy.
The other assessment findings mentioned are also important to note and address, but they do not require immediate action:
A. The client lying in a supine position in bed: While it is generally recommended for clients receiving oxygen therapy to be in an upright or semi-upright position, this finding does not require immediate action unless there are specific indications or contraindications related to the client's condition.
B. The cannula pressed snugly against the client's cheeks: The cannula should fit comfortably and securely on the client's face without causing discomfort or pressure areas. While this finding may require adjustment to ensure proper fit and comfort, it does not require immediate action unless it is causing harm or compromising oxygen delivery.
D. There is no humidifier attached to the delivery system: While a humidifier may be recommended to add moisture to the oxygen, its absence does not pose an immediate threat to the client's safety or require immediate action. The need for humidification depends on the client's condition and comfort level, and it can be addressed by attaching a humidifier if necessary.

This is the action that the PN should take prior to giving digoxin to a 2-month-old infant whose heart rate is 120 beats/minute. Digoxin is a cardiac glycoside that is used to treat heart failure and arrhythmias. It has a narrow therapeutic range and can cause serious side effects such as bradycardia, hypotension, and toxicity. Therefore, it is important to monitor the client's vital signs before and after administering the medication. A normal heart rate for a 2-month-old infant is 100–190 beats/minute, so 120 beats/minute is within the normal range and does not indicate a need to hold the medication. The PN should administer the medication as prescribed and document the heart rate and any other relevant findings.