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patient Preparation Guide.

The lab tests listed below have special requirements that should be adhered to prior to specimen collection. The tests are listed alphabetically.

Patients please note: Obtain the advice of your physician before discontinuing any medications.


TESTS

PREPARATION

5-Hydroxyindoleacetic Acid (5-HIAA)

On the day prior to and the day of the specimen collection, avoid:

  • bananas
  • avocados
  • plums
  • eggplant
  • tomatoes
  • plantains
  • pineapples
  • walnuts

If acceptable to your physician, do not take any of the following medications for the 48-hour period prior to specimen collection:

  • acetaminophen (Tylenol)
  • salicylates (aspirin)
  • phenacetin
  • cough syrup containing glycerol guaiacolate
  • mephenesin
  • isoniazid
  • MAO inhibitors (e.g., Parnate®, Nardil®, Marplan®)
  • methenamine (Prosed® or Urinsed®)
  • methyldopa (Aldomet®)
  • phenothiazines (e.g., Thorazine®, Mellaril®, Stelazine®)

Alpha-1- Antitrypsin

Fasting (overnight) preferred

Amino Acid Quantitation (Urine and Plasma)

Fasting (4 hrs) required

Amino Acid Screen (qualitative)

Fasting (4 hrs) required

Anti Histone Ab

Fasting (overnight) preferred

Anti ssDNA IGG Antibodies

Fasting (overnight) preferred

Anti-Platelet antibody Screen

Scheduled by appointment at MLHL Hospital collection facilities only.

Antithombin III Antigenic

Fasting (overnight) preferred. If acceptable to your physician, refrain from taking the following medications for 3 days prior to the specimen collection:

  • Anabolic steroids
  • gemfibrozil
  • Warfarin (Coumadin)
  • heparin therapy
  • asparaginase
  • estrogens
  • gestogene
  • oral contraceptives

Ant-ssDNA IGG Antibodies

Fasting (overnight) preferred

Apolipoprotein evaluation

Fasting (12 hrs)

Arginine Vassopressin (ADH)

Fasting (4 hrs)

Arsenic, Random Urine

Refrain from eating shellfish, shrimp, crab, lobster and bottom-feeding fish such as flounder for at least 3 days prior to the specimen collection.

Basic Metabolic Panel

Fasting (overnight) preferred

Bleeding Time

If acceptable to your physician, refrain from taking aspirin for 3 to 5 days prior to the test.

Cadmium, Random Urine

Patients should refrain from eating shellfish for at least 3 days prior to the specimen collection.

Calcitonin

Fasting (overnight) preferred

Cardio C-reactive protein (highly or ultra sensitive CRP)

Fasting (overnight) preferred

Catecholamines, Plasma

Fasting (overnight)

For the day before and the day of specimen collection, do not consume:

  • alcohol
  • bananas
  • tea
  • coffee
  • caffeine
  • chocolate

If you have had an X-ray procedure during which contrast material was injected (IVP, angiogram, myelogram, etc.), wait at least 3 days before collecting a specimen.

Cholesterol

Fasting (overnight) required if performed as part of a lipid panel.

Chromium, Urine

If acceptable to your physician, refrain from taking vitamins or mineral supplements at least 1 week prior to collection.

Chromosome Studies

Scheduled by appointment at all MLHL collection facilities.

Comprehensive Metabolic Panel

Fasting (overnight) preferred

C-Peptide

Fasting

Cryoglobulins

Fasting (overnight) required

DHEA Uncojugated

Fasting required

D-Xylose absorption

Fasting (overnight and during test period). Scheduled by appointment at MLHL hospital collection facilities only.

Fecal Occult Blood

If acceptable to your physician, avoid aspirin and other nonsteroidal anti-inflammatory drugs, such as ibuprofen (Motrin®, Advil®) and naproxen (Aleve®, Naprosyn®) for 7days prior to and during the test period.

If acceptable to your physician, avoid for 48 hours prior to and during the test period:

  • Vitamin C in excess of 250 mg per day (from all sources, dietary and supplemental)
  • red meat (beef, lamb), including processed meats and liver
  • Raw fruits and vegetables (especially melons, turnips and horseradish)

Fragile-X Chromosome

Scheduled by appointment at all MLHL collection facilities.

Gastrin

Fasting (12 hrs)

Glucagon

Fasting required

Glucose (Fasting Blood Sugar)

Fasting (overnight) required

Glucose Tolerance Tests

Scheduled by appointment at all MLHL collection facilities.

Heavy Metals panel

Patient should refrain from eating seafood at least 3 days prior to specimen collection.

Hepatic Function Panel

Fasting (overnight) preferred

Insulin

Fasting required

Jewish Genetic (Tay-Sachs) Panel

Scheduled by appointment at all MLHL collection facilities.

Karyotyping

Scheduled by appointment at all MLHL collection facilities.

Lactate, venous

Patient should be fasting and on bed rest 2 hours prior to collection.

Lactose Tolerance

Fasting

Leukemia Panel

Scheduled by appointment at all MLHL collection facilities.

Lipid Profile

Fasting (overnight) required

Lipoprotein (a)

Fasting (overnight) required

Lipoprotein A

Fasting (overnight) required

Lymphocyte Immune Panel

Scheduled by appointment at all MLHL collection facilities.

Lymphoma Panel

Scheduled by appointment at all MLHL collection facilities.

Metanephrines

Fasting (overnight)

For the day before and the day of specimen collection, do not consume:

  • alcohol
  • bananas
  • tea
  • coffee
  • caffeine
  • chocolate

If you have had an X-ray procedure during which contrast material was injected (IVP, angiogram, myelogram, etc.), wait at least 3 days before collecting a specimen.

Peroxisomal Panel

Fasting. No alcohol consumption for 24 hours prior to specimen collection.

Philadelphia Chromosome

Scheduled by appointment at all MLHL collection facilities.

Proinsulin

Fasting (overnight) required

Protein C (Antigenic)

If acceptable to your physician, if you are receiving Warfarin (Coumadin) therapy, discontinue medication 2 weeks before testing.

Pyruvate

Fasting

Renal Profile

Fasting (overnight) preferred

Ristocetin cofactor

Fasting (overnight) preferred

Schilling Test

Patients should call pmedlab

Semen Analysis

By appointment only. Collection at MLHL hospitals only. Contact the lab at          00962 4624600 for instructions.

Sweat Test

Available only at Bryn Mawr Hospital. Schedule an appointment with Precision Medical lab  .

Tay-Sachs Panel

Scheduled by appointment at all MLHL collection facilities.

Triglycerides

Fasting (overnight) required. Water permitted.

Vanillylmandelic Acid (VMA)

The day before and the day of the specimen collection, do not consume:

  • bananas
  • fruit juices
  • octopus meat

If acceptable to your physician, the day before and the day of the collection the following drugs should be avoided:

  • triamterene (Diazide®, Dyrenium®, Maxzide®)
  • phenylpyruvic acid
  • labetalol (Normodyne®, Trandate®)
  • methyldopa (Aldomet®)

Vitamin A (Retinol)

Fasting (overnight) preferred

Vitamin B6

Fasting (overnight) preferred

Vitamin C

Fasting (overnight) preferred. If acceptable to your physician, refrain from taking vitamins or vitamin supplements for at least 24 hrs prior to collection.

Vitamin E

Fasting (overnight) preferred

Von Willebrand Factor Panel

Scheduled by appointment at all MLHL collection facilities.

Xylose Absorption

Fasting (overnight) preferred

Zinc

If acceptable to your physician, refrain from taking vitamins or mineral supplements at least 3 days prior to specimen collection.


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