A client receives a prescription for dalteparin 2500 units subcutaneously 2 hours before a scheduled procedure. The medication is available in a 5000 units/0.2 mL prefilled syringe. How many mL should the nurse administer? (Enter numeric value only)

Choice A reason: Telling the client to notify the nurse if the pain is not relieved is an important nursing action, but it is not the highest priority. The nurse should assess the client's pain level before and after administering the medication, and evaluate its effectiveness. If the pain is not relieved, the nurse should report it to the prescriber and consider other interventions.

Choice B reason: Advising the client that the medication should start to work in about 30 minutes is an informative nursing action, but it is not the highest priority. The nurse should educate the client about the expected onset, peak, and duration of action of the medication, and how to take it safely and effectively. However, this does not address any immediate risks or needs of the client.

Choice C reason: Administering a stool softener/laxative at the same time as the analgesic is a preventive nursing action, but it is not the highest priority. The nurse should anticipate and prevent potential side effects of the medication, such as constipation, which can be caused by codeine. However, this does not address any urgent or emergent issues of the client.

Choice D reason: Instructing the client to request assistance when ambulating to the bathroom is the highest priority nursing action, as it addresses a serious safety concern of the client. The nurse should protect the client from falls and injuries, which can be caused by codeine's sedative and drowsy effects. The nurse should also monitor the client's respiratory rate and level of consciousness, as codeine can cause respiratory depression and altered mental status.

Choice A reason: Determining when the last dose was administered is important to ensure safe and effective pain management, but it is not the first action that the nurse should implement. The nurse should first assess the client's pain level and intensity before deciding on the appropriate dose and frequency of pain medication.

Choice B reason: Encouraging the client to use diversional thoughts to manage pain is a non-pharmacological intervention that can help reduce pain perception and anxiety, but it is not sufficient to address severe or acute pain. The nurse should first assess the client's pain level and intensity before suggesting any complementary or alternative therapies.

Choice C reason: Asking the client to rate the current level of pain using a pain scale is the first action that the nurse should implement, as it can help quantify and communicate the client's pain experience and guide the nurse's decision on pain medication. The nurse should use a valid and reliable pain scale that is appropriate for the client's age, cognitive ability, and language preference.

Choice D reason: Reviewing the history for a past use of recreational drugs is relevant to assess the client's risk of addiction or tolerance to pain medication, but it is not the first action that the nurse should implement. The nurse should first assess the client's pain level and intensity before considering any factors that may influence pain management.