heparin 20000 units in 500 ml d5w at 50 mlhour has been infusing for 5 hours how much heparin has the client received
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1. Heparin 20,000 units in 500 ml D5W at 50 ml/hour has been infusing for 5.5 hours. How much heparin has the client received?

Correct answer: A

Rationale: To calculate the total amount of heparin received, multiply the infusion rate (50 ml/hour) by the total infusion time (5.5 hours). This results in 275 ml of the solution infused. Since there are 20,000 units of heparin in 500 ml, there are 800 units per ml. Therefore, 275 ml contains 220,000 units. However, the heparin is diluted in 500 ml, so the client has received half of this amount, which is 110,000 units. Therefore, the correct answer is 11,000 units. Choices B, C, and D are incorrect as they do not reflect the correct calculation based on the provided information.

2. A client is scheduled for an intravenous pyelogram. Which of the following actions is appropriate for the nurse to include?

Correct answer: B

Rationale: The correct action for the nurse to include before an intravenous pyelogram is ensuring the client is free of metal objects. Metal objects can interfere with the imaging procedure and may need to be removed to prevent artifacts. Monitoring for pain in the suprapubic region (choice A) is not directly related to the procedure and is not a standard pre-procedure action. Administering oral contrast (choice C) is more common for other imaging studies like a CT scan, not an intravenous pyelogram. Assisting with a bowel cleansing (choice D) is not typically required before an intravenous pyelogram.

3. A caregiver of an immobile client requiring assistance with repositioning is being taught by a nurse on preventing back strain. Which statement by the caregiver indicates an understanding of the teaching?

Correct answer: B

Rationale: The correct answer is B. Tightening the abdominal muscles before moving helps protect the back by providing core support. Keeping the legs straight (choice C) is incorrect as bending the legs is recommended to provide a stable base and prevent strain on the back. Twisting at the waist (choice D) while moving can cause back injury due to the strain on the spine. Placing the bed in the lowest position (choice A) is not directly related to preventing back strain during client repositioning, although it may be necessary for other reasons.

4. A client has an indwelling urinary catheter. Which of the following assessment findings indicates that the catheter requires irrigation?

Correct answer: D

Rationale: The correct answer is D because if the catheter is blocked or not draining, it may need irrigation to restore proper flow. Option A, 'Bladder scan shows 525 mL of urine,' does not necessarily indicate the need for irrigation as it could be within the expected range for catheter drainage. Option B, 'Urine has a strong odor,' may indicate a urinary tract infection but does not directly correlate with the need for catheter irrigation. Option C, 'The client reports abdominal discomfort,' could indicate various issues but does not specifically suggest the need for catheter irrigation.

5. What action should a healthcare professional planning to insert an IV for an older adult client take?

Correct answer: A

Rationale: The correct action for a healthcare professional planning to insert an IV for an older adult client is to place the client’s arm in a dependent position. This positioning helps with vein prominence and facilitates easier IV insertion by enhancing blood flow and distending the veins. Placing the arm in a flexed position or elevating it to the level of the heart can impede vein visualization and make insertion more challenging. Using a tourniquet above the insertion site is a step in the IV insertion process but is not the initial action to take when preparing for the procedure.

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