A nurse in an emergency department is caring for a client following a motor-vehicle crash.

The client’s Glasgow coma scale rating is 15.

Which of the following findings should the nurse expect

The correct answer is choice A. Instruct the client to avoid coughing during the procedure.

A thoracentesis is a procedure that involves inserting a needle into the pleural space to remove excess fluid or air. Coughing can increase the risk of pneumothorax (collapsed lung) or bleeding during the procedure.

Choice B is wrong because the client does not need to be NPO (nothing by mouth) for 6 hr prior to the procedure. There is no risk of aspiration during a thoracentesis.

Choice C is wrong because the client should be positioned on the unaffected side for 4 hr following the procedure. This allows the affected lung to re-expand and prevents fluid from accumulating in the pleural space again.

Choice D is wrong because the client should not be placed in the prone position during the procedure. The prone position makes it difficult to access the pleural space and can compromise breathing.

The correct answer is choice D. The nurse should choose a vein that is palpable and straight for IV catheter insertion.

This will facilitate the insertion of the catheter and reduce the risk of complications such as infiltration, phlebitis, or hematoma. A straight vein will also allow the catheter to be inserted up to the hub, which reduces the risk of contamination along the length of the catheter.

Choice A is wrong because selecting a site on the client’s dominant arm can interfere with the client’s mobility and increase the risk of dislodging the catheter. The nurse should choose a site on the client’s non-dominant arm, preferably on the hand or forearm.

Choice B is wrong because applying a tourniquet below the venipuncture site will impede blood flow and make it harder to locate a suitable vein. The nurse should apply a tourniquet above the venipuncture site, about 10 to 15 cm from the insertion site.

Choice C is wrong because elevating the client’s arm prior to insertion will decrease venous filling and make it harder to palpate a vein. The nurse should lower the client’s arm below the level of the heart to increase venous distension.

Normal ranges for IV catheter size and insertion angle depend on several factors, such as the type and duration of therapy, the condition and size of the vein, and the age and preference of the client.

In general, smaller gauge catheters (20 to 24) are preferred for peripheral IV therapy, and larger gauge catheters (14 to 18) are used for rapid fluid administration or blood transfusion. The insertion angle can vary from 10 to 30 degrees, depending on the depth and location of the vein.