Situation: A 40-year-old man with dengue is admitted on the fourth day of illness; his fever subsided this morning. He weighs 60 kg and has no history of heart or kidney disease. He is receiving intravenous (IV) fluids through a 20-gauge catheter in his left forearm. On day 7 he has been afebrile for 3 days and is eating well. His hematocrit has fallen from 51% to 41%, his platelet count is rising, and his urine output is large. His IV isotonic fluid is still running at the rate set on day 4. He now has puffy eyelids, mild dyspnea when lying flat, and fine crackles at both lung bases. What should the nurse do?

In the recovery phase of dengue, leaked plasma returns to the vessels: the hematocrit falls, urine output rises, and IV fluid still running at the critical-phase rate causes fluid overload. Puffy eyelids, orthopnea, and crackles are signs of overload, so the nurse reports them so that IV fluid can be reduced or stopped. A falling hematocrit with rising platelets and no bleeding reflects reabsorption, not blood loss.

Clinical picture
A dengue patient on day 7 has entered the recovery phase. The fever has resolved, oral intake is adequate, and the laboratory trend shows a falling hematocrit from 51% to 41% with a rising platelet count and large urine output. These are expected findings because the capillary leak that characterized the critical phase is reversing, and the fluid that had shifted into the interstitial space is now returning to the intravascular compartment.

Why the patient is overloaded
During the critical leakage phase of dengue, plasma escapes from the vessels into the tissues, which is why the hematocrit rises and intravascular volume falls. Intravenous isotonic fluid is given to maintain perfusion during that phase. Once the leak stops and reabsorption begins, the same IV fluid that was appropriate on day 4 now adds to the returning plasma volume. Continued infusion at the critical-phase rate during recovery produces iatrogenic fluid overload. The puffy eyelids, difficulty breathing when lying flat, and fine crackles at both lung bases are signs of pulmonary edema from excess circulating volume.

Interpreting the hematocrit fall
A falling hematocrit in this setting does not indicate hemorrhage. The patient has no bleeding, the platelet count is rising, and urine output is large. The drop from 51% to 41% reflects hemodilution as reabsorbed fluid re-enters the vessels, not red cell loss. Therefore, blood transfusion is not indicated, and increasing the IV rate would worsen the overload. Waiting 24 hours while continuing the current rate would also allow pulmonary edema to progress.

Nursing action
The correct response is to report the findings so the IV rate can be reduced or the infusion stopped. Key point! The same IV rate that is life-saving during the critical phase becomes dangerous in recovery. Watch out! Do not mistake the falling hematocrit for bleeding when platelets are rising and urine output is high. The nurse should assess respiratory status, elevate the head of the bed, monitor oxygen saturation, and prepare to titrate or discontinue the IV fluid as prescribed.

Phase	Hematocrit	Urine output	IV fluid need
Critical (leakage)	Rising	Decreased	Maintain to support perfusion
Recovery (reabsorption)	Falling	Increased	Reduce or stop to prevent overload