NCLEX RN Lab Values: Quick Reference Guide, Exams of Nursing

This is a comprehensive list of normal lab values for common nursing tests. It includes values for urine specific gravity, sodium, central venous pressure, polyuria, oliguria, anuria, magnesium, calcium, potassium, pH, PaO2, PaCO2, HCO3, PTT, PT, INR, serum creatinine, hematocrit, hemoglobin, glucose, white blood cells, blood urea nitrogen, platelets, red blood cells, digoxin, bleeding time, hemoglobin A1c, total cholesterol, HDL, LDL, serum albumin, lithium, serum ammonia, ALT/SGPT, AST/SGOT, total serum protein, ESR, phosphorous, intracranial pressure, Glasgow Coma Scale, pulse pressure, mean arterial pressure, chloride, glucose tolerance test, serum bilirubin, lactate dehydrogenase, alkaline phosphatase, serum triglycerides, creatine kinase, theophylline, phenytoin, acetaminophen, magnesium sulphate, carbamazepine, amitriptyline, urine pH, normal urine production, normal fluid intake, and APTT. A quick reference guide for nursing students and professionals.

Typology: Exams

2025/2026

Available from 10/24/2025

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NCLEX RN Lab Values
UrineQSpecificQgravityQ-QCORRECTQANSWERQ-1.010-1.030
SodiumQ(Na)Q-QCORRECTQANSWERQ-135-145QmEq/L
CentralQVenousQPressureQ-QCORRECTQANSWERQ-2-6QmmHg;Q5-10QcmH2O
PolyuriaQ-QCORRECTQANSWERQ->Q2000mlQinQ24Qhours
OliguriaQ-QCORRECTQANSWERQ-100-400mlQinQ24Qhours
AnuriaQ-QCORRECTQANSWERQ-<Q100QinQ24Qhours
MagnesiumQ-QCORRECTQANSWERQ-1.5-2.5QmEq/L
CalciumQ-QCORRECTQANSWERQ-8.5Q-Q10.5Qmg/dL
PotassiumQ-QCORRECTQANSWERQ-3.5-5.0QmEq/L
pHQ-QCORRECTQANSWERQ-7.35-7.45
PaO2Q-QCORRECTQANSWERQ-80-100QmmHg
PaCO2Q-QCORRECTQANSWERQ-35-45QmmHg
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NCLEX RN Lab Values

UrineQSpecificQgravityQ-QCORRECTQANSWERQ-1.010-1. SodiumQ(Na)Q-QCORRECTQANSWERQ- 135 - 145 QmEq/L CentralQVenousQPressureQ-QCORRECTQANSWERQ- 2 - 6 QmmHg;Q 5 - 10 QcmH2O PolyuriaQ-QCORRECTQANSWERQ->Q2000mlQinQ 24 Qhours OliguriaQ-QCORRECTQANSWERQ- 100 - 400mlQinQ 24 Qhours AnuriaQ-QCORRECTQANSWERQ-<Q 100 QinQ 24 Qhours MagnesiumQ-QCORRECTQANSWERQ-1.5-2.5QmEq/L CalciumQ-QCORRECTQANSWERQ-8.5Q-Q10.5Qmg/dL PotassiumQ-QCORRECTQANSWERQ-3.5-5.0QmEq/L pHQ-QCORRECTQANSWERQ-7.35-7. PaO2Q-QCORRECTQANSWERQ- 80 - 100 QmmHg PaCO2Q-QCORRECTQANSWERQ- 35 - 45 QmmHg

HCO3Q-QCORRECTQANSWERQ- 22 - 26 QmEq/L PTTQ(PartialQThromboplastinQTime)Q-QCORRECTQANSWERQ-normalQ=Q 20 - 35 Qseconds;QonQheparinQtherapyQgoalQisQ1.5Q-Q2.5QtimesQthis PTQ(ProthrombinQTime,QPro-time)Q-QCORRECTQANSWERQ- 10 Q- 13 QsecondsQ-QreferQtoQINRQvalue INRQ-QCORRECTQANSWERQ-1.0QnormQwithoutQtreatment;Q 2 - 3 QforQAFib,QDVTQ&QPE;Q2.5- 3.5QforQprostheticQheartQvalves SerumQCreatinineQ-QCORRECTQANSWERQ-0.7Q-Q1.4Qmg/dL HematocritQAdultQMaleQ-QCORRECTQANSWERQ- 42 - 52% HemoglobinQAdultQMaleQ-QCORRECTQANSWERQ- 13 - 18 Qg/dL HematocritQ-QAdultQFemaleQ-QCORRECTQANSWERQ- 35 - 47% HemoglobinQ-QAdultQFemailQ-QCORRECTQANSWERQ- 12 - 18 Qg/dL Glucose-fastingQplasmaQ-QCORRECTQANSWERQ- 65 Q-Q 115 Qmg/dL GlucoseQcriticalQlowQ-QCORRECTQANSWERQ-<Q 50 GlucoseQcriticalQhighQ-QCORRECTQANSWERQ->Q 400

LithiumQTherapeuticQLevelQ-QCORRECTQANSWERQ-.6-1.2Qmeq/LQtherapeutic SerumQAmmoniaQ(arterial)Q-QCORRECTQANSWERQ- 15 - 40 Qmcg/dL ALT/SGPTQ-QCORRECTQANSWERQ- 8 - 40 QU/L AST/SGOTQ-QCORRECTQANSWERQ- 8 - 40 QU/L TotalQserumQproteinQ-QCORRECTQANSWERQ-6.0Q-Q8.0Qg/dL ErythrocyteQSedimentationQRateQ(ESR)Q-QMaleQ-QCORRECTQANSWERQ- 0 - 15 Qmm/hr ErythrocyteQSedimentationQRateQ(ESR)Q-QFemaleQ-QCORRECTQANSWERQ- 0 - 25 Qmm/hrQ<Q 25 Qy/o;Q 0 - 30 Q>Q 25 Qy/o PhosphorousQ-QCORRECTQANSWERQ-2.5-4.5Qmg/dL IntracranialQPressureQ(ICP)Q-QCORRECTQANSWERQ-... GlasgowQComeQScaleQ-QCORRECTQANSWERQ- 15 QbestQscore,Q 3 QlowestQscore,Q 7 QconsideredQcomatose PulseQPressureQ-QCORRECTQANSWERQ-... MeanQArterialQPressureQ-QCORRECTQANSWERQ-...

ChlorideQ-QCORRECTQANSWERQ- 97 - 110 Qmmol/L GlucoseQToleranceQTestQ-QCORRECTQANSWERQ-FastingQ=Q 60 - 110 Qmm/dL,Q 1 QhourQ=Q 190 Qmm/dL,Q 2 QhoursQ=Q 140 Qmm/dL,Q 3 QhoursQ=Q 125 Qmm/dL SerumQBilirubinQTotalQ-QCORRECTQANSWERQ- 0 Q-Q0.9Qmg/dL SerumQBilirubinQIndirectQ-QCORRECTQANSWERQ- 0 Q-Q0.3Qmg/dL LactateQdehydrogenaseQ(LDH)Q-QCORRECTQANSWERQ- 100 Q-Q 225 QIU/L AlkalineQPhosphataseQ-QCORRECTQANSWERQ- 50 - 150 Qunits/L SerumQTriglyceridesQ-QCORRECTQANSWERQ- 100 Q-Q 200 Qmg/dL CreatineQKinaseQ-QCORRECTQANSWERQ- 50 - 235 QU/LQ=QMale;Q 50 - 250 QU/LQ=QFemale;0- 70 QU/LQ=QChild LithiumQ-QTherapeuticQLevelQ-QCORRECTQANSWERQ-0.5-1.3QmEq/L TheophyllineQ-QTherapeuticQLevelQ-QCORRECTQANSWERQ- 10 - 20 Qmcg/mL phenytoinQ(Dilantin)Q-QTherapeuticQlevelQ-QCORRECTQANSWERQ- 10 - 20 Qmcg/mL acetaminophenQ(Tylenol)Q-QCORRECTQANSWERQ- 120 - 150 Qng/dL magnesiumQsulphateQ-QCORRECTQANSWERQ- 4 - 7 Qmg/dL