Why 5 mL Capacity with Luer Lock for Versatile Clinical Applications

The 5 mL barrel capacity represents the optimal size for most routine medication administration—large enough to accommodate standard drug doses, IV flush volumes, and vaccine preparations while remaining compact enough for comfortable single-handed operation and precise plunger control during injections. The Luer Lock threaded tip connection provides mechanical security that prevents needle or accessory detachment during high-pressure injections, patient movement, or inadvertent pulling—critical for IV push medications, arterial blood gas sampling, wound irrigation, and any procedure where accidental disconnection would compromise patient safety or sterility. Clear graduated barrel markings at precise increments enable accurate dose measurement for weight-based pediatric dosing, titrated medication administration, and precise fluid delivery where dosing errors could cause adverse effects, while the transparent construction allows immediate visual verification of medication clarity, air bubble presence, and complete dose delivery.

Key Features & Benefits

Key Features:

• 5 mL barrel capacity for versatile medication volumes
• Luer Lock threaded tip for secure needle attachment
• Clear transparent barrel for fluid visualization
• Graduated markings at precise increments (typically 0.2 mL)
• Smooth-gliding plunger for controlled fluid delivery
• Latex-free construction (no natural rubber latex)
• Sterile, individually packaged
• Positive plunger stop prevents accidental plunger removal
• Bold graduation numbers for easy reading
• Retaining ring holds plunger in barrel
• Compatible with all Luer Lock needles and accessories
• Medical-grade polypropylene construction
• Single-use, disposable design
• Manufactured by Medline (trusted healthcare supplier)
• Meets USP and ISO quality standards

Benefits:

• Optimal size for most routine injections and procedures
• Luer Lock prevents accidental needle disconnection
• Threaded connection enables higher-pressure applications
• Clear barrel allows air bubble detection
• Precise graduations support accurate dosing
• Smooth plunger enables controlled injection speed
• Latex-free protects sensitive patients and healthcare workers
• Sterile packaging ensures infection control
• Positive stop prevents dose errors
• Universal Luer Lock compatibility
• Reliable quality with consistent performance
• Single-use prevents cross-contamination
• Cost-effective for routine clinical use

Clinical Applications

Medline 5 mL Luer Lock Syringes are appropriate for:

✓ Intramuscular injections ✓ Subcutaneous injections ✓ Intravenous push medications ✓ IV line flushing with saline ✓ Drawing medications from vials ✓ Medication reconstitution ✓ Vaccine administration ✓ Local anesthetic administration ✓ Wound irrigation (small volumes) ✓ Contrast media injection ✓ Feeding tube medication administration ✓ Catheter flushing ✓ Blood sample collection (arterial blood gases) ✓ Laboratory specimen preparation ✓ Aspiration of small fluid collections ✓ Medication preparation and transfer ✓ Pediatric medication administration ✓ Emergency medication delivery

Usage & Application

Pre-Use Preparation:

1. Verify clinical indication:
   • Confirm medication order, dose, route
   • Check patient allergies
   • Perform "5 Rights" verification
2. Assess syringe size:
   • 5 mL appropriate for most routine procedures
   • Consider different size if dose >4 mL or <1 mL
3. Gather supplies:
   • Medline 5 mL Luer Lock syringe
   • Appropriate Luer Lock needle
   • Medication
   • Alcohol swabs
   • Gloves, gauze, sharps container
4. Hand hygiene and don gloves
5. Inspect package:
   • Check integrity and expiration
   • Ensure sterile seal intact

Opening and Attaching Needle:

1. Open package:
   • Peel open sterile package
   • Remove syringe aseptically
   • Do not touch tip or plunger
2. Remove tip cap:
   • Twist or pull off protective cap
3. Attach Luer Lock needle:
   • Hold syringe barrel
   • Align needle hub threads with syringe tip
   • Push and twist clockwise until secure
   • Verify tight connection with gentle tug
4. Remove needle shield

Drawing Medication:

1. From vials:
   • Calculate and verify dose
   • Clean rubber stopper with alcohol
   • Draw air equal to medication volume
   • Insert needle, inject air
   • Invert vial, withdraw medication
   • Remove air bubbles, verify dose
   • Replace needle before injection
2. From ampules:
   • Break ampule carefully
   • Draw medication
   • Always replace needle (glass particles)

Administering Injection:

• Follow appropriate technique for route (IM, SubQ, IV)
• Verify site, clean with alcohol
• Insert at proper angle
• Aspirate if required
• Inject slowly and steadily
• Withdraw and apply pressure

IV Line Flushing:

1. Prepare flush:
   • Draw normal saline (3-10 mL typical)
   • Remove air bubbles
2. Clean IV port:
   • Scrub hub 15 seconds with alcohol
   • Allow to dry
3. Attach and flush:
   • Twist Luer Lock onto IV port
   • Inject saline slowly
   • Use push-pause technique
   • Maintain positive pressure while clamping

Post-Use Care:

1. Do not recap needle
2. Dispose in sharps container immediately
3. Remove gloves, hand hygiene
4. Document procedure

Reading Graduations:

• Hold at eye level horizontally
• Read at plunger tip (not top)
• Understand markings (typically 0.2 mL increments)
• Bold lines every 0.5 or 1 mL
• Double-check reading

Storage:

• Room temperature 15-30°C (59-86°F)
• Keep in original packaging
• Store in clean, dry area
• Check expiration dates
• Rotate stock using FIFO

Troubleshooting:

Needle won't attach:

• Verify both are Luer Lock
• Check for damaged threads
• Ensure proper alignment

Needle comes loose:

• Twist more firmly clockwise
• Check for damaged threads

Plunger difficult to move:

• May be defective—discard
• Do not force

Air bubbles won't come out:

• Tap barrel firmly
• Hold vertical with needle up
• Flick barrel with finger

Medication leaking:

• Check Luer Lock connection tight
• Verify needle fully seated

Special Considerations:

High-alert medications:

• Consider smaller syringe for better precision
• Double-check dose

Pediatric dosing:

• Weight-based calculations require precision
• Verify dose with second person

IV push medications:

• Luer Lock essential for secure connection
• Inject at prescribed rate

Flushing protocols:

• Pre-flush verifies patency
• Post-flush clears medication
• Use 5 mL or larger syringe (reduces pressure)

Infection Control:

• Never reuse syringes
• Never share between patients
• Use new syringe for each medication
• Maintain sterility of tip and plunger

When NOT to Use:

• Do NOT use for insulin (use insulin syringes)
• Do NOT use for oral medications (use oral syringes)
• Not for enteral feeding without adapter

Luer Lock vs. Luer Slip:

Luer Lock advantages:

• Secure threaded connection
• Won't disconnect accidentally
• Better for high-pressure injections
• Required for some procedures

When Luer Lock required:

• IV push medications
• High-pressure injections
• Any situation where disconnection dangerous

Technical Specifications

Product Details:

• Manufacturer: Medline Industries, Inc.
• Product Type: Sterile disposable syringe
• Capacity: 5 mL (5 cc)
• Tip Type: Luer Lock (threaded connection)
• Barrel Material: Medical-grade polypropylene
• Barrel Transparency: Clear transparent
• Graduation Markings: Precise increments (typically 0.2 mL)
• Graduation Accuracy: ±5% (meets standards)
• Plunger Material: Latex-free elastomer
• Plunger Design: Smooth-gliding with positive stop
• Retaining Ring: Prevents accidental plunger removal
• Tip Cap: Protective cap maintains sterility
• Sterility: Sterile until opened
• Sterilization Method: Ethylene oxide (EtO) or gamma radiation
• Latex Content: Latex-free (no natural rubber latex)
• DEHP-Free: Typically yes
• Pyrogen-Free: Non-pyrogenic
• Packaging: Individually packaged in peel-open pouches
• Shelf Life: Typically 5 years
• Storage: Room temperature, dry conditions
• Intended Use: Medication administration, fluid aspiration, injection
• Routes: IM, SubQ, IV
• Patient Population: All ages
• Regulatory Status: FDA-cleared medical device, Class II
• Standards Compliance:
  • ISO 7886-1 (sterile hypodermic syringes)
  • ISO 594 (Luer taper connections)
  • USP standards