CramX Logo
Back to FlashcardsNursing / Nursing Fundamentals - Lab Values

Nursing Fundamentals - Lab Values

Nursing46 CardsCreated 8 months ago

WBCs help fight infection; values <2,000 or >40,000 are critical and may indicate severe infection, bone marrow issues, or immune disorders.

Report

Will normal lab values be provided on the Next Generation NCLEX exam?

Yes!

It is still a good idea to memorize the values of common labs.

Rate to track your progress ✦

Tap or swipe ↕ to flip
Swipe ←→Navigate
1/46

Key Terms

Term
Definition

Will normal lab values be provided on the Next Generation NCLEX exam?

Yes!

It is still a good idea to memorize the values of common labs.

Lab value:

sodium

135 - 145 (mEq/L)

Critical: < 120 or > 160

Lab value:

chloride

98 - 106 (mEq/L)

Lab value:

potassium

3.5 - 5 (mmol/L)

Critical: < 3 or > 6

Lab value:

magnesium

1.6 - 2.6 (mg/dL)

Lab value:

calcium

8.5 - 10.5 (mg/dL)

Related Flashcard Decks

TermDefinition

Will normal lab values be provided on the Next Generation NCLEX exam?

Yes!

It is still a good idea to memorize the values of common labs.

Lab value:

sodium

135 - 145 (mEq/L)

Critical: < 120 or > 160

Lab value:

chloride

98 - 106 (mEq/L)

Lab value:

potassium

3.5 - 5 (mmol/L)

Critical: < 3 or > 6

Lab value:

magnesium

1.6 - 2.6 (mg/dL)

Lab value:

calcium

8.5 - 10.5 (mg/dL)

Lab value:

phosphorus

2.5 - 4.5 (mg/dL)

Lab value:

WBC

(white blood cell)

5,000 - 10,000 (million/µL)

Critical value: < 2,000 or > 40,000

Lab value:

RBC: male and female

(red blood cell)

male: 4.7 - 6.6 (million/µL)

female: 4.2 - 5.4 (million/µL)

Lab value:

Hgb: male, female, pregnant

(hemoglobin)

male: 14-18 (g/dL)

female: 12-16 (g/dL)

pregnant: >11 (g/dL)

Lab value:

Hct: male, female, pregnant

(hematocrit)

male: 42 - 52%

female: 37 - 47%

pregnant: >33%

Lab value:

platelets

150,000 - 400,000 (million/µL)

Critical value: < 50,000 or > 1 million

Lab value:

blood urea nitrogen

(BUN)

10 - 20 (mg/dL)

critical BUN: > 100

Lab value:

creatinine

0.6 - 1.2 (mg/dL)

Critical: > 4

Lab value:

glomerular filtration rate

(GFR)

> 90 (mL/min)

Average is 125 (mL/min)

Lab value:

bilirubin in newborn

< 14 (mg/dL), newborn is managed at home with sunlight and increased feedings

> 14 (mg/dL), newborn is hospitalized

> 20 (mg/dL), is considered toxic

Adult bilirubin is about 1-2, newborn bilirubin is always a bit high around 10.

Lab value:

(ALT) alanine aminotransferase

(AST) aspartate aminotransferase

(ALP) alkaline phosphatase

ALT: 4 - 36 (U/L)

AST: 0 - 25 (U/L)

ALP: 20 - 140 (U/L)

A mild elevation will be 2 - 3 times higher than normal

A severe elevation can be in the hundreds or thousands

Lab value:

total cholesterol

< 200 (mg/dL)

Lab value:

HDL: male, female

(High-density lipoproteins)

male: >40 (1.0 mmol/L)

female: >50 (1.3 mmol/L)

>60 (1.6 mmol/L) is ideal

Lab value:

LDL

(Low-density lipoproteins)

< 100 (mg/dL)

Lab value:

protein

6 - 8.3 (g/dL)

Lab value:

ammonia

15 - 56 (µmol/L)

Lab value:

albumin

3.5 - 5 (g/dL)

Lab value:

PT normal/control

(prothrombin time)

PT normal/control: 11 - 12.5 seconds

Lab value:

PT therapeutic

| (prothrombin time)

1.5 - 2 times the control/normal value

Example 11 x 1.5 = 16.5

12.5 x 2 = 25

Therapeutic level: 16.5 - 25 seconds

Labs are different and may have a different control. If there is not a control number indicated use 11 - 12.5. The higher the number the less risk that a blood clot will form. But it also puts the client at risk for bleeding.

Lab value:

INR: normal, therapeutic

| (international normalized ratio)

normal: 0.8 - 1.1

therapeutic: 2 - 3

Therapeutic: the higher the number the less risk that a blood clot will form. But it also puts the client at risk for bleeding.

Lab value:

aPTT: (normal/control)

| (activated partial thromboplastin time)

aPTT normal/control: 25 - 35 seconds

Lab value:

aPTT: therapeutic

| (activated partial thromboplastin time)

aPTT: 1.5 - 2.5 times the control/normal value

Example: 25 x 1.5 = 37.5 second
35 x 2.5 = 87.5 seconds

Therapeutic level: 37.5 - 87.5 seconds

Labs are different and may have a different control. Some labs use 20-30 and some use 30-40. If there is not a control number indicated use 25-35 seconds. The higher the number the less risk that a blood clot will form. ​But it also puts the client at risk for bleeding.

Lab value:

amylase and lipase

0 - 160 (U/L)

Lab value:

HbA1c

| (glycated hemoglobin)

non-diabetic: 4 - 5.7%

good diabetes control: \< 7%

poor diabetes control: > 9%

Lab value:

Blood sugar: fasting, random, critical

fasting: 70 - 110 mg/dL (3.9 - 6.1 mmol/L) - no food for at least 8 hours before the test

random: ≤ 200 mg/dL (≤ 11.1 mmol/L)- may have eaten before the test

critical: \< 50 or > 400 mg/dL (\< 2.8 - > 22.2 mmol/L)

Lab value:

BNP

| (B-type natriuretic peptide or brain natriuretic peptide)

0 - 100 (pg/mL)

Lab value:

troponin

0 - 0.04 (ng/mL)

Lab value:

CK

| (creatine kinase)

22 - 198 (U/L)

Lab value:

uric acid

2.4 - 7 (mg/dL)

Therapeutic drug level:

digoxin

1 - 2 (ng/mL)
2 or greater is considered toxicity

Therapeutic drug level:

lithium

0.6 - 1.2 (mmol/L)
2 or greater is considered toxicity.

Therapeutic drug level:

phenytoin

10 - 20 (mcg/mL)

Greater than 20 is considered toxic.

What is the normal respiration rate for an adult?

12 - 20 breaths per minute

What is a normal pulse oximetry/oxygen (O2) saturation?

95% - 100%

What is a normal heart rate for an adult?

60 - 100 beats per minute

strong and regular

What is a normal blood pressure (BP)?

90/60 to 120/80 (mmHg)

systolic is the first number

diastolic is the second number

What is a normal body temperature?

96.8° - 100.4° F

| (36° - 38° C)

What labs are included in a CBC (complete blood count)?

Red blood cell count

Hemoglobin

Hematocrit

White blood cell count

What labs are included in a BMP (basic metabolic panel)?

glucose

calcium

potassium

bicarbonate

chloride

BUN

creatinine

What labs are included in a CMP (complete metabolic panel)?

glucose

calcium

potassium

bicarbonate

chloride

BUN

creatinine

albumin

total protein

ALP and AST

bilirubin