Lactate Dehydrogenase (LD)

Quest Diagnostics

Sample type: Serum

Requires fasting: No

Phlebotomy required

Details

Elevations in serum lactate dehydrogenase occur from myocardial infarction, liver disease, pernicious and megaloblastic anemia, pulmonary emboli, malignancies, and muscular dystrophy. Since lactic dehydrogenase is present in many body tissues, it's diagnosis usefulness is limited. Tissue specificity may be enhanced by isoenzyme analysis.

Biomarker summary

Lactate dehydrogenase (ld)

Additional details

Estimated days for results: Results should be available in 2 - 5 business days after the sample is collected

Lactate Dehydrogenase (LD) Test
This test measures the level of lactate dehydrogenase (LD) in the blood, which can help identify conditions like heart attacks, liver disease, certain types of anemia, blood clots in the lungs, cancer, and muscular dystrophy. LD is found in many body tissues, so this test alone may not pinpoint the exact problem area. However, looking at different forms of LD (isoenzymes) can provide more specific information.

What patients is this test right for?

This test may be ordered if a person shows symptoms or has conditions that could lead to elevated LD levels, such as:

Chest pain
Jaundice
Difficulty breathing
Unusual weakness
Signs of anemia

What type of sample is required for this test?

1 mL serum.
A blood draw is needed.

Test Resources:

Resources are currently not available for this test.

Average sample processing time

2–5 business days

Reference range

Male (U/L) Female (U/L)
<1 Month 125-735 145-765
1-11 Months 170-450 190-420
1-3 Years 155-345 165-395
4-6 Years 155-345 135-345
7-10 Years 140-270 140-270
11-13 Years 110-250 110-250
14-17 Years 110-230 110-230
18-49 Years 100-220 100-200
>49 Years 120-250 120-250

Health categories

Patient instructions

Blood Draw Options with Fullscript
Fullscript offers several convenient phlebotomy options to complete your lab testing:

Quest Diagnostics Patient Service Centers (PSC)

Location: Visit a nearby Quest Diagnostics Patient Service Center.
Cost: $10 sample collection fee (paid during lab order checkout).
Scheduling: Schedule your appointment here. Appointments are recommended to reduce wait times. Walk-ins are accepted, but may experience delays. Aim to arrive 10 minutes before your appointment.
Collection Instructions:

Bring a valid ID.
Bring your digital or printed requisition form, available in the Labs tab of your Fullscript account.

Check-in: Scan the QR code from your confirmation email or follow kiosk instructions.
More Info: Quest Diagnostics blood draw guide

Getlabs Mobile Phlebotomy

Location: Sample collection at your home or office.
Cost: $85 sample collection fee (paid during lab order checkout).
Availability: Available in most locations – enter your ZIP code during checkout to confirm.
Scheduling: Schedule your appointment here through your Fullscript account.
Collection Instructions: