CRT/RRT EXAM WITH CORRECT QUESTIONS AND
ANSWERS 2025
BLEEDING TIME (TEMPLATE) - CORRECT-ANSWERS-LESS THAN 10 MINUTES
ERYTHROCYTE COUNT - CORRECT-ANSWERS-4.2 - 5.9 MILLION/MCL
ERYTHROCYTE SEDIMENTATION RATE (WESTERGREN) - CORRECT-ANSWERS-MALE: 0-15MM/HR
FEMALE: 0-20 MM/HR
HEMATOCRIT, BLOOD - CORRECT-ANSWERS-MALE: 42-50%
FEMALE: 40 - 48%
HEMOGLOBIN, BLOOD - CORRECT-ANSWERS-MALE: 13-16 G/DL
FEMALE: 12-15 G/DL
LEUKOCYTE COUNT AND DIFFERENTIAL - CORRECT-ANSWERS-LEUKOCYTE COUNT: 4000-11000/MCL
50-70% SEGMENTED NEUTROPHILS
0-5% BAND FORMS, 0-3% EOSINOPHILS
0-1% BASOPHILS, 30-45% LYMPHOCYTES
0-6% MONOCYTES
MEAN CORPUSCULAR VOLUME - CORRECT-ANSWERS-86-98 FL
PROTRHOMBIN TIME, PLASMA - CORRECT-ANSWERS-11-13 SECONDS
PARTIAL THROMBOPLASTIN TIME (ACTIVATED) - CORRECT-ANSWERS-30-40 SECONDS
PLATELET COUNT - CORRECT-ANSWERS-150,000 - 300,000/MCL
RETICULOCYTE COUNT - CORRECT-ANSWERS-0.5 - 1.5% OF RED CELLS
AMYLASE, SERUM - CORRECT-ANSWERS-25 - 125 U/L
,ARTERIAL STUDIES, BLOOD (PATIENT BREATHING ROOM AIR): PO2 - CORRECT-ANSWERS-75-100 MMHG
ARTERIAL STUDIES, BLOOD (PATIENT BREATHING ROOM AIR): PCO2 - CORRECT-ANSWERS-38-42MMHG
ARTERIAL STUDIES, BLOOD (PATIENT BREATHING ROOM AIR): BICARBONATE - CORRECT-ANSWERS-23-26
MEQ/L
ARTERIAL STUDIES, BLOOD (PATIENT BREATHING ROOM AIR): PH - CORRECT-ANSWERS-7.38 - 7.44
ARTERIAL STUDIES, BLOOD (PATIENT BREATHING ROOM AIR): OXYGEN SATURATION - CORRECT-ANSWERS-95%
OR GREATER
BICARBONATE, SERUM - CORRECT-ANSWERS-23 - 28 MEQ/L
BILIRUBIN, SERUM: - CORRECT-ANSWERS-TOTAL 0.3 - 1.0 MG/DL
DIRECT 0.1 - 0.3 MG/DL
COMPREHENSIVE METABOLIC PANEL:
BILIRUBIN, SERUM (TOTAL) - CORRECT-ANSWERS-0.3 - 1.0 MG/DL
COMPREHENSIVE METABOLIC PANEL:
CALCIUM, SERUM - CORRECT-ANSWERS-MALE: 9.0 -10.5MG/DL
FEMALE: 8.5 - 10.2MG/DL
COMPREHENSIVE METABOLIC PANEL:
CHOLESTEROL, SERUM (TOTAL) - CORRECT-ANSWERS-DESIRABLE: LESS THAN 200MD/DL
BORDERLINE-HIGH: 200-239MG/DL(MAY BE HIGH IN THE PRESENCE OF CORONARY ARTERY DISEASE OR OTHER
RISK FACTORS)
HIGH: GREATER THAN 239MD/DL
COMPREHENSIVE METABOLIC PANEL:
CREATININE, SERUM - CORRECT-ANSWERS-0.7-1.5 MG/DL
,GLUCOSE, PLASMA - CORRECT-ANSWERS-NORMAL (FASTING); 70 -115 MG/DL
BORDERLINE: 115-140 MG/DL
ABNORMAL: GREATER THAN 140 MG/DL
PHOSPHORUS, SERUM - CORRECT-ANSWERS-3.0 - 4.5 MG/DL
PROTEINS, SERUM:
PRE-ALBUMIN - CORRECT-ANSWERS-0.2 - 0.4 G/DL
PROTEINS, SERUM:
ALBUMIN - CORRECT-ANSWERS-3.5 - 5.5 G/DL
UREA NITROGEN, BLOOD (BUN) - CORRECT-ANSWERS-8 - 20 MG/DL
URIC ACID, SERUM - CORRECT-ANSWERS-3.0 -7.0 MG/DL
CHOLESTEROL SERUM:
HIGH DENSITY LIPOPROTEIN (HDL) - CORRECT-ANSWERS-LOW: LESS THAN 40 MG/DL
CHOLESTEROL SERUM:
LOW DENSITY LIPOPROTEIN (LDL) - CORRECT-ANSWERS-OPTIMAL: LESS THAN 100MG/DL
NEAR OPTIMAL: 100 - 129 MG/DL
BORDERLINE-HIGH: 130-159 MG/DL (MAY BE HIGH IN THE PRESENCE OF CORONARY ARTERY DISEASE OR OTHER
RISK FACTORS)
HIGH: 160 - 189 MG/DL
VERY HIGH: 190 MG/DL AND BOVE
TRIGLYCERIDES, SERUM (FASTING) - CORRECT-ANSWERS-NORMAL: LESS THAN 250MG/DL
BORDERLINE: 250 - 500 MG/DL
ABNORMAL: GREATER THAN 500 MG/DL
, ELECTROLYTES, SERUM:
SODIUM - CORRECT-ANSWERS-136 - 145 MEQ/L
ELECTROLYTES, SERUM:
POTASSIUM - CORRECT-ANSWERS-3.5-5.0 MEQ/L
ELECTROLYTES, SERUM:
CHLORIDE - CORRECT-ANSWERS-98-106 MEQ/L
FOLLICLE-STIMULATING HORMONE, SERUM: - CORRECT-ANSWERS-ADULT MALE: 2 - 18 MLU/ML
FEMALE: 5-20 MLU/ML (FOLLICULAR OR LUTEAL)
30 - 50 MLU/ML 9MID-CYCLE PEAK)
GREATER THAN 50 MLU/ML (POSTMENOPAUSAL)
LACTATE DEHYDROGENASE, SERUM - CORRECT-ANSWERS-140 - 280 U/L
OSMOLALITY, SERUM - CORRECT-ANSWERS-280 - 300 M0SM/KG H20
PHOSPHATASE (ALKALINE), SERUM - CORRECT-ANSWERS-30 - 120 U/L
UPON REVIEW OF THE PATIENT RECORD, THE RESPIRATORY THERAPIST NOTICES THAT THE CHART INDICATES THAT
THE PATIENT HAS A CODE STATUS OF "DO NOT RESUSCITATE." DURING A ROUTINE ASSESSMENT, THE PATIENT
BECOMES APNEIC. WHICH OF THESE SHOULD THE RESPIRATORY THERAPIST DO? - CORRECT-ANSWERS-REPORT
THIS TO THE CHARGE NURSE AS SOON AS POSSIBLE.
A REVIEW OF PHYSICIAN ORDERS FOR A PATIENT ADMITTED TO AN ACUTE CARE FACILITY WITH AN EXACERBATION
OF CHRONIC OBSTRUCTIVE PULMONARY DISEASE (COPD) SHOWS THAT THE MEDICATIONS RESPONSIBILITY TO
PERFORM WHICH OF THESE ACTIONS? - CORRECT-ANSWERS-CONTACT THE ORDERING PHYSICIAN TO VERIFY
ORDERS.
ANSWERS 2025
BLEEDING TIME (TEMPLATE) - CORRECT-ANSWERS-LESS THAN 10 MINUTES
ERYTHROCYTE COUNT - CORRECT-ANSWERS-4.2 - 5.9 MILLION/MCL
ERYTHROCYTE SEDIMENTATION RATE (WESTERGREN) - CORRECT-ANSWERS-MALE: 0-15MM/HR
FEMALE: 0-20 MM/HR
HEMATOCRIT, BLOOD - CORRECT-ANSWERS-MALE: 42-50%
FEMALE: 40 - 48%
HEMOGLOBIN, BLOOD - CORRECT-ANSWERS-MALE: 13-16 G/DL
FEMALE: 12-15 G/DL
LEUKOCYTE COUNT AND DIFFERENTIAL - CORRECT-ANSWERS-LEUKOCYTE COUNT: 4000-11000/MCL
50-70% SEGMENTED NEUTROPHILS
0-5% BAND FORMS, 0-3% EOSINOPHILS
0-1% BASOPHILS, 30-45% LYMPHOCYTES
0-6% MONOCYTES
MEAN CORPUSCULAR VOLUME - CORRECT-ANSWERS-86-98 FL
PROTRHOMBIN TIME, PLASMA - CORRECT-ANSWERS-11-13 SECONDS
PARTIAL THROMBOPLASTIN TIME (ACTIVATED) - CORRECT-ANSWERS-30-40 SECONDS
PLATELET COUNT - CORRECT-ANSWERS-150,000 - 300,000/MCL
RETICULOCYTE COUNT - CORRECT-ANSWERS-0.5 - 1.5% OF RED CELLS
AMYLASE, SERUM - CORRECT-ANSWERS-25 - 125 U/L
,ARTERIAL STUDIES, BLOOD (PATIENT BREATHING ROOM AIR): PO2 - CORRECT-ANSWERS-75-100 MMHG
ARTERIAL STUDIES, BLOOD (PATIENT BREATHING ROOM AIR): PCO2 - CORRECT-ANSWERS-38-42MMHG
ARTERIAL STUDIES, BLOOD (PATIENT BREATHING ROOM AIR): BICARBONATE - CORRECT-ANSWERS-23-26
MEQ/L
ARTERIAL STUDIES, BLOOD (PATIENT BREATHING ROOM AIR): PH - CORRECT-ANSWERS-7.38 - 7.44
ARTERIAL STUDIES, BLOOD (PATIENT BREATHING ROOM AIR): OXYGEN SATURATION - CORRECT-ANSWERS-95%
OR GREATER
BICARBONATE, SERUM - CORRECT-ANSWERS-23 - 28 MEQ/L
BILIRUBIN, SERUM: - CORRECT-ANSWERS-TOTAL 0.3 - 1.0 MG/DL
DIRECT 0.1 - 0.3 MG/DL
COMPREHENSIVE METABOLIC PANEL:
BILIRUBIN, SERUM (TOTAL) - CORRECT-ANSWERS-0.3 - 1.0 MG/DL
COMPREHENSIVE METABOLIC PANEL:
CALCIUM, SERUM - CORRECT-ANSWERS-MALE: 9.0 -10.5MG/DL
FEMALE: 8.5 - 10.2MG/DL
COMPREHENSIVE METABOLIC PANEL:
CHOLESTEROL, SERUM (TOTAL) - CORRECT-ANSWERS-DESIRABLE: LESS THAN 200MD/DL
BORDERLINE-HIGH: 200-239MG/DL(MAY BE HIGH IN THE PRESENCE OF CORONARY ARTERY DISEASE OR OTHER
RISK FACTORS)
HIGH: GREATER THAN 239MD/DL
COMPREHENSIVE METABOLIC PANEL:
CREATININE, SERUM - CORRECT-ANSWERS-0.7-1.5 MG/DL
,GLUCOSE, PLASMA - CORRECT-ANSWERS-NORMAL (FASTING); 70 -115 MG/DL
BORDERLINE: 115-140 MG/DL
ABNORMAL: GREATER THAN 140 MG/DL
PHOSPHORUS, SERUM - CORRECT-ANSWERS-3.0 - 4.5 MG/DL
PROTEINS, SERUM:
PRE-ALBUMIN - CORRECT-ANSWERS-0.2 - 0.4 G/DL
PROTEINS, SERUM:
ALBUMIN - CORRECT-ANSWERS-3.5 - 5.5 G/DL
UREA NITROGEN, BLOOD (BUN) - CORRECT-ANSWERS-8 - 20 MG/DL
URIC ACID, SERUM - CORRECT-ANSWERS-3.0 -7.0 MG/DL
CHOLESTEROL SERUM:
HIGH DENSITY LIPOPROTEIN (HDL) - CORRECT-ANSWERS-LOW: LESS THAN 40 MG/DL
CHOLESTEROL SERUM:
LOW DENSITY LIPOPROTEIN (LDL) - CORRECT-ANSWERS-OPTIMAL: LESS THAN 100MG/DL
NEAR OPTIMAL: 100 - 129 MG/DL
BORDERLINE-HIGH: 130-159 MG/DL (MAY BE HIGH IN THE PRESENCE OF CORONARY ARTERY DISEASE OR OTHER
RISK FACTORS)
HIGH: 160 - 189 MG/DL
VERY HIGH: 190 MG/DL AND BOVE
TRIGLYCERIDES, SERUM (FASTING) - CORRECT-ANSWERS-NORMAL: LESS THAN 250MG/DL
BORDERLINE: 250 - 500 MG/DL
ABNORMAL: GREATER THAN 500 MG/DL
, ELECTROLYTES, SERUM:
SODIUM - CORRECT-ANSWERS-136 - 145 MEQ/L
ELECTROLYTES, SERUM:
POTASSIUM - CORRECT-ANSWERS-3.5-5.0 MEQ/L
ELECTROLYTES, SERUM:
CHLORIDE - CORRECT-ANSWERS-98-106 MEQ/L
FOLLICLE-STIMULATING HORMONE, SERUM: - CORRECT-ANSWERS-ADULT MALE: 2 - 18 MLU/ML
FEMALE: 5-20 MLU/ML (FOLLICULAR OR LUTEAL)
30 - 50 MLU/ML 9MID-CYCLE PEAK)
GREATER THAN 50 MLU/ML (POSTMENOPAUSAL)
LACTATE DEHYDROGENASE, SERUM - CORRECT-ANSWERS-140 - 280 U/L
OSMOLALITY, SERUM - CORRECT-ANSWERS-280 - 300 M0SM/KG H20
PHOSPHATASE (ALKALINE), SERUM - CORRECT-ANSWERS-30 - 120 U/L
UPON REVIEW OF THE PATIENT RECORD, THE RESPIRATORY THERAPIST NOTICES THAT THE CHART INDICATES THAT
THE PATIENT HAS A CODE STATUS OF "DO NOT RESUSCITATE." DURING A ROUTINE ASSESSMENT, THE PATIENT
BECOMES APNEIC. WHICH OF THESE SHOULD THE RESPIRATORY THERAPIST DO? - CORRECT-ANSWERS-REPORT
THIS TO THE CHARGE NURSE AS SOON AS POSSIBLE.
A REVIEW OF PHYSICIAN ORDERS FOR A PATIENT ADMITTED TO AN ACUTE CARE FACILITY WITH AN EXACERBATION
OF CHRONIC OBSTRUCTIVE PULMONARY DISEASE (COPD) SHOWS THAT THE MEDICATIONS RESPONSIBILITY TO
PERFORM WHICH OF THESE ACTIONS? - CORRECT-ANSWERS-CONTACT THE ORDERING PHYSICIAN TO VERIFY
ORDERS.
