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: Assessing for orthostatic hypotension before administering the dose is not necessary, as labetalol does not cause orthostatic hypotension. Orthostatic hypotension is a condition where the blood pressure drops significantly when changing positions from lying to sitting or standing. Labetalol is a beta-blocker that lowers blood pressure by reducing the heart rate and cardiac output.

Choice B reason: Administering the dose and monitoring the client's B/P regularly is not appropriate, as labetalol may cause further bradycardia (slow heart rate) in this client. The client's heart rate is already below normal (48 beats/minute), which may indicate that labetalol is overdosed or contraindicated. Bradycardia can lead to decreased perfusion, dizziness, fatigue, and fainting.

Choice C reason: Applying a telemetry monitor before administering the dose is not sufficient, as labetalol may cause serious cardiac arrhythmias (irregular heart rhythms) in this client. The client's heart rate is already below normal (48 beats/minute), which may indicate that labetalol is affecting the electrical conduction system of the heart. Arrhythmias can cause palpitations, chest pain, shortness of breath, and cardiac arrest.

Choice D reason: Withholding the scheduled dose and notifying the healthcare provider is the best action for the nurse to take in this situation. The client's heart rate is already below normal (48 beats/minute), which may indicate that labetalol is causing adverse effects or interactions with other medications. The healthcare provider should be informed of the client's vital signs and medication history, and decide whether to adjust or discontinue labetalol.

Choice A reason: Breast feeding is not recommended while taking this medication, as isotretinoin can pass into breast milk and harm

the nursing infant. However, this information is not as important as choice d, as the client may not be breast feeding or planning to breast feed.

Choice B reason: Baseline liver function results must be obtained during therapy, as isotretinoin can cause liver damage and increase liver enzymes. However, this information is not as important as choice d, as the client may not have liver problems or need liver function tests.

Choice C reason: Do not take multiple vitamins that contain vitamin A while taking this drug, as isotretinoin is a derivative of vitamin A and can cause vitamin A toxicity if taken in excess. However, this information is not as important as choice d, as the client may not take multiple vitamins or have vitamin A toxicity.

Choice D reason: Discontinue this medication one month before attempting to conceive, as isotretinoin can cause severe birth defects and miscarriages if taken during pregnancy. Therefore, this information is most important for the nurse to provide this client, as the client is planning to become pregnant and should avoid isotretinoin exposure.