Lab Tests Before Surgery (All You Need To Know!)

 

Lab Tests Before Surgery 

Many individuals find lab tests daunting - after all, this determines whether you will be allowed to proceed with your surgical procedure or not. It's not uncommon for patients to be sent home because their blood tests were not satisfactory, don't let this be you! With a bit of knowledge and preparation, we'll help you to get it right the first time. In today's blog we talk about the importance of lab tests, how to prepare for them and what the normal range for some of these tests looks like.

It's common knowledge that all operative procedures require a range of tests  before any surgical operations are permitted. Pre op tests are essential in order to determine that you are healthy enough for your operation and anaesthetic.

The lab tests are usually completed the week before the planned procedure. The examination will involve an assessment of your medical history and current health. All of these tests can be done on urine, blood samples and swabs. The primary checks will include;

1. A pregnancy tests

2. HIV and syphilis tests

3. Blood pressure

4. BMI

5. Sickle cell test

6. Blood glucose sugar levels

7. Electrolytes levels 

8. Coagulation tests.

Your surgeon may also include blood gases, an X ray and and ECG if your a smoker. Most surgeons will complete these tests during your pre examination at no additional charge. However, if you are an out of town patient or are concerned about your test results, you may want to complete these tests at your own discretion prior to your surgery date. This self assessment gives you the chance to prepare beforehand and take additional supplements if need be. You may request for these tests to be done by your own doctor or use a private clinic instead. Private clinics are great for getting blood tests completed quickly. On the negative side, these may cost up to $300 for a complete pre op screening and are usually purchased alongside a panel of other tests. You'll need to contact your surgeon in order to confirm the exact tests you will need to complete and make sure that these are included.

 How to NOT fail your Lab tests

  1. Stop smoking AT LEAST 2 weeks before your appointment. The sooner the better.
  2. Try to NOT get sick. Yes, we know this can't be helped, but if you have a low immune system, your surgeon may decide to post pone.
  3. EASE OFF any caffeinated drinks. What you trying to stay awake for anyway?
  4. NO ALOCHOL
  5. MIND THE MEDICATIONS. This is probably the number 1 reason dolls are forced to reschedule. Medication can alter your blood results negatively by increasing your blood pressure and cholesterol levels amongst other things. It's important to consult with your surgeon before taking any medication. 

 

Results
Below we've included some charts and tables that you may find useful when comparing your own test results. Please note these results will differ with each source and must not not be used as 'fact' but rather as a guideline. Individual research is encouraged.
Blood pressure chart

Haematology Normal Adult Reference Ranges

Male

Female

Units

Haemoglobin (HB)

130-180

115-165

g/L

White Cell Count (WBC)

4-11

4-11

109/L

Platelet Count (PLT)

150-450

150-450

109/L

Red Blood Count (RBC)

4.5-6.5

3.8-5.8

1012/L

Mean Cell Volume (MCV)

80-100

80-100

fl

Packed Cell Volume (PCV) Haematocrit (HCT)

0.40-0.52

0.37-0.47

L/L

Mean Cell Haemoglobin (MCH)

27-32

27-32

pg

Mean Cell Haemoglobin Concentration (MCHC)

320-360

320-360

g/L

Neutrophil Count

2.0-7.5

2.0-7.5

109/L

Lymphocyte Count

1.5-4.5

1.5-4.5

109/L

Monocyte Count

0.2-0.8

0.2-0.8

109/L

Eosinophil Count

0-0.4

0-0.4

109/L

Basophil Count

0-0.1

0-0.1

109/L

Erythrocyte Sedimentation Rate (ESR)

1-10

1-12

mm/hr

Reticulocytes

0.2-2.0

0.2-2.0

%

PT

10.0-13.0

10.0-13.0

secs

INR

0.8-1.2

0.8-1.2

Ratio

APTT

23-30

23-30

Secs

Fibrinogen

1.5-4.5

1.5-4.5

g/L

Antithrombin Activity

80-120

80-120

iu/dL

Protein S Free Antigen

60-140

60-140

iu/dL

Protein C Activity

70-130

70-130

iu/dL

Lupus Anticoagulant

<1.2

<1.2

Ratio

Activated Protein C Resistance (APCR)

>2.0

>2.0

Ratio

D - Dimers

(This is not the DVT/PE cut-off value)

0.1-0.45

0.1-0.45

mg/L FEU

 

Get our weekly blog sent straight to your mailbox by subscribing here!

- The CurveCulture x

Leave a comment