How should human albumin be administered by intravenous infusion?

How to Administer Human Albumin Infusion

Human albumin should be administered intravenously through a prepared venipuncture site using standard aseptic technique, with the solution given undiluted directly from the container at a rate and dose determined by the clinical indication. 1

Administration Technique

Preparation and Route

• Administer only by intravenous infusion through a non-infected, non-traumatized venipuncture site prepared with standard aseptic technique 1
• The solution is ready to use as contained in the bottle and requires no dilution 1
• Inspect the solution before administration - it should be clear and slightly viscous, almost colorless or yellow/amber/green 1
• Do not use if the solution is turbid or contains particulate matter 1

Compatibility Considerations

• Compatible with: whole blood, packed red cells, usual electrolyte solutions, and carbohydrate solutions for IV use 1
• Do NOT mix with: protein hydrolysates, amino acid mixtures, or alcohol-containing solutions 1
• May be given without regard to the recipient's blood group 1

Infusion Rate

The evidence on optimal infusion rate shows important nuances:

Rapid vs. Slow Infusion

Research demonstrates that rapid infusion (30 minutes) produces greater plasma volume expansion over time compared to slow infusion (180 minutes) when equivalent albumin doses are given 2. The slow infusion resulted in a smaller area under the plasma volume curve, indicating less efficient plasma volume expansion 2.

Practical recommendation: For volume resuscitation, administer albumin over 30 minutes rather than prolonged infusions to maximize plasma volume expansion efficiency.

Dosing by Clinical Indication

Volume Deficit

• Estimate dose based on hemodynamic response with safeguards against circulatory overload 1
• Total dose should not exceed 2 g per kg body weight in the absence of active hemorrhage 1
• This represents the normal circulating albumin mass 1

Oncotic Deficit (Hypoalbuminemia)

• Calculate dose using: (Desired TSP - Actual TSP) × plasma volume (~40 mL/kg) × 2 1
• The factor of 2 accounts for hidden extravascular deficit 1
• Verify effectiveness by measuring post-infusion total serum protein (TSP) level as individual response varies 1

Specific Conditions with Evidence-Based Dosing

Cirrhosis with Large-Volume Paracentesis (>5L):

• 6-8 g albumin per liter of ascitic fluid removed OR
• Standard dose of 20-40 g 3
• This is one of only two conditional recommendations supporting albumin use 3

Spontaneous Bacterial Peritonitis:

• 1.5 g/kg on day 1 and 1.0 g/kg on day 3 3
• Reduces kidney impairment and mortality 3
• This is the second conditional recommendation supporting albumin use 3

Hemolytic Disease of Newborn:

• 1 g/kg body weight given approximately 1 hour prior to exchange transfusion 1
• Use caution in hypervolemic infants 1

Concentration Selection

Two concentrations are available with different volume effects:

5% Albumin

• Produces plasma volume expansion approximately equal to infused volume 4
• One-third may quickly leak from plasma if patient's colloid osmotic pressure exceeds the solution's pressure 4

20-25% Albumin

• Produces plasma volume expansion approximately twice the infused volume 4
• Has a dehydrating effect when equivalent albumin mass is administered 4
• More effective in hypoalbuminemia (serum albumin ≤25 g/L) as an effect moderator 5

Clinical pearl: The volume effectiveness of albumin appears greater when baseline serum albumin levels are low, suggesting hypoalbuminemia acts as an effect moderator 5.

Monitoring and Safety

Essential Monitoring

• Check post-infusion serum protein/albumin levels to verify individual response 1
• Monitor for signs of circulatory overload, particularly in patients receiving large volumes 1
• Hemodynamic response should guide total dosing 1

Adverse Reactions to Monitor

• Common: Nausea, chills, fever, urticaria, headache, hypotension 1
• Serious: Anaphylactic shock (rare), fluid overload, pulmonary edema 1, 3
• Management of reactions: 50-100 mg prednisolone IV for incompatibility reactions 1

Critical Safety Considerations

• Risk of bacterial contamination only occurs with damaged containers or after puncture of rubber cap 1
• Higher risk of pulmonary edema in cirrhosis patients, particularly with extraperitoneal infections 3
• Albumin can cause hemodilution requiring RBC transfusion, peripheral gangrene from dilution of natural anticoagulants 3

Evidence-Based Restrictions

Important caveat: The 2024 International Collaboration for Transfusion Medicine Guidelines found that 12 of 14 recommendations did NOT support albumin use in common clinical situations where it is frequently prescribed 3. Specifically:

• NOT recommended for first-line volume replacement in critically ill adults (excluding thermal injuries/ARDS) 3
• NOT recommended to increase serum albumin levels in critical illness 3
• NOT recommended in pediatric critical care, neonatal critical care, cardiovascular surgery, or kidney replacement therapy 3

The cost is substantial (~$130 per 25g) and evidence shows few applications improve patient outcomes compared to crystalloids 3.