NCLEX · Fluid and Electrolyte Imbalances

A client with heart failure is assessed for fluid volume excess. Which finding is MOST consistent with this condition?

Correct answer

Peripheral edema, crackles in lung bases, weight gain of 2 kg in 2 days, elevated blood pressure, and jugular vein distension

  1. A Poor skin turgor and dry mucous membranes
  2. B Peripheral edema, crackles in lung bases, weight gain of 2 kg in 2 days, elevated blood pressure, and jugular vein distension
  3. C Decreased urine output with concentrated urine
  4. D Rapid, weak pulse with low blood pressure

Why this is the answer

FLUID VOLUME EXCESS (FVE), also called hypervolemia or fluid overload, occurs when too much fluid is retained in the body. In HEART FAILURE, the failing heart cannot pump blood forward effectively; fluid backs up in the venous system and lungs. HALLMARK SIGNS OF FVE: PERIPHERAL EDEMA — dependent edema (ankles/feet when upright, sacrum when supine); PULMONARY EDEMA — crackles (rales) at lung bases; dyspnea; orthopnea (difficulty breathing when lying flat); paroxysmal nocturnal dyspnea; WEIGHT GAIN — 1 kg ≈ 1 liter of fluid; 2 kg in 2 days is significant (daily weight is the MOST SENSITIVE early indicator of fluid retention); ELEVATED BLOOD PRESSURE — from increased circulating volume; JUGULAR VEIN DISTENSION (JVD) — at 45° head of bed elevation, visible jugular pulsation >2 cm above sternal angle indicates elevated central venous pressure; FULL, BOUNDING PULSE — from increased cardiac output/volume; INCREASED URINE OUTPUT (if kidneys are responding) — or decreased if kidneys are failing; S3 HEART SOUND ('gallop') — associated with heart failure. CONTRAST WITH FLUID VOLUME DEFICIT (FVD/hypovolemia): poor skin turgor; dry mucous membranes; decreased urine output with concentrated urine; tachycardia; decreased BP (orthostatic hypotension); flat neck veins; dizziness; weight loss; weak thready pulse. NURSING INTERVENTIONS for FVE: MONITOR: daily weight (same time, same scale, same clothing), I&O, vital signs, lung sounds, edema; DIURETICS: furosemide (Lasix) most common loop diuretic; FLUID RESTRICTION as ordered; low SODIUM DIET (sodium promotes water retention); POSITION: semi-Fowler's or high-Fowler's for dyspnea; REPORT: rapid weight gain (>1 kg/day), worsening dyspnea or crackles.
Source: NCLEX-PN Test Plan: Physiological — Fluid/Electrolytes, FVE