A nurse is preparing to administer 4,000 units of heparin subcutaneously to a client who has deep-vein thrombosis.

Available is heparin 10,000 units/mL.

How many mL of heparin should the nurse administer? (Round the answer to the nearest) tenth.

Use a leading zero if it applies.

Do not use a trailing zero.) mL.

Osmotic laxatives work by drawing water into the colon to soften the stool and stimulate bowel movements. However, excessive use of osmotic laxatives can cause fluid volume deficit, which is a state of reduced intravascular volume.

One of the signs of fluid volume deficit is oliguria, which means low urine output.

Choice B. Nausea is wrong because nausea is a common side effect of osmotic laxatives, not an indication of fluid volume deficit.

Choice C. Headaches is wrong because headaches are more likely to be caused by dehydration, which is a state of reduced total body water, mostly affecting the intracellular fluid compartment.

Dehydration can result from osmotic laxatives, but it is not the same as fluid volume deficit.

Choice D. Weight gain is wrong because weight gain is not a sign of fluid volume deficit.

This will help reduce swelling and discomfort caused by the infiltration of fluid into the tissues. Elevating the extremity also promotes venous return and prevents further fluid accumulation.

Choice A is wrong because applying pressure to the IV site can increase the risk of tissue damage and infection.

Pressure can also obstruct blood flow and cause thrombophlebitis.

Choice C is wrong because slowing the infusion rate will not stop the infiltration of fluid into the tissues.

Slowing the infusion rate can also delay the delivery of medication or fluid to the client.

Choice D is wrong because flushing the IV catheter can worsen the infiltration of fluid into the tissues.

Flushing the IV catheter can also introduce air or bacteria into the bloodstream and cause complications.

Normal ranges for peripheral IV infusion are dependent on the type and volume of fluid, the size and location of the catheter, and the condition of the client. Generally, peripheral IV infusion rates should not exceed 100 mL/hr for adults and 60 mL/hr for children.