A postoperative patient who had surgery for a perforated gastric ulcer has been receiving nasogastric suction for 3 days. The patient now has a serum sodium level of 127 mEq/L (127 mmol/L). Which prescribed therapy should the nurse question?

The nurse should administer 1.4 mL of Heparin to the patient.

To calculate the number of milliliters (mL) the nurse should administer, we can use the following steps:

Step 1: Calculate the total amount of Heparin available in mL

Heparin concentration: 5,000 units per mL

Ordered Heparin dose: 7,000 units

Total mL of Heparin needed = Ordered dose / Heparin concentration

Total mL = 7,000 units / 5,000 units per mL = 1.4 mL

Choice A reason: This statement is false. The patient’s radial pulse is 105 beats/min is not the assessment data that will require the most rapid response by the nurse. A high pulse rate can indicate dehydration, anxiety, or fever, but it is not a life-threatening condition.

Choice B reason: This statement is false. There is sediment and blood in the patient’s urine is not the assessment data that will require the most rapid response by the nurse. Sediment and blood in the urine can indicate kidney damage, infection, or trauma, but they are not an immediate complication of hyponatremia.

Choice C reason: This statement is true. There are crackles throughout both lung fields is the assessment data that will require the most rapid response by the nurse. Crackles are abnormal lung sounds that indicate fluid accumulation in the alveoli, which can impair gas exchange and cause respiratory distress. Crackles can be a sign of pulmonary edema, a serious complication of hyponatremia that requires prompt treatment.

Choice D reason: This statement is false. The blood pressure increases from 120/80 to 142/94 mm Hg is not the assessment data that will require the most rapid response by the nurse. A high blood pressure can indicate fluid overload, stress, or pain, but it is not a critical condition.