Study Guide Exam with Questions and
Correct Answers Latest 2025-2026
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Color ,coding ,indicates ,a ,needle's ,- ,CORRECT ,ANSWER-gauge
Why ,is ,it ,necessary ,to ,wipe ,the ,first ,drop ,of ,blood ,away ,when ,performing ,a ,capillary
,procedure? ,- ,CORRECT ,ANSWER-To ,reduce ,interstitial ,fluid ,contamination
The ,heel ,is ,the ,recommended ,site ,for ,collection ,of ,capillary ,puncture ,specimens ,on
,infants ,and ,the ,phlebotomist ,is ,going ,to ,stick ,in ,the ,posterior ,curvature ,of ,the ,heel. ,Is
,this ,correct? ,- ,CORRECT ,ANSWER-No ,the ,medial ,plantar ,surface ,of ,the ,heel ,is ,the
,best ,site ,to ,prevent ,possible ,bone ,damage
Heparinized ,plasma ,is ,preferred ,over ,serum ,for ,some ,chemistry ,tests. ,Heparin
,prevents ,clotting ,by ,- ,CORRECT ,ANSWER-inactivating ,thrombin.
Which ,of ,the ,following ,may ,cause ,hematoma ,formation? ,- ,CORRECT ,ANSWER-
Having ,patient ,bend ,elbow ,to ,apply ,pressure
By ,bracing ,the ,hand ,while ,holding ,the ,needle ,assembly ,against ,the ,patients ,arm ,you
,- ,CORRECT ,ANSWER-prevent ,excess ,needle ,movement.
When ,performing ,a ,capillary ,blood ,collection, ,the ,first ,blood ,drop ,is ,wiped ,away
,because ,- ,CORRECT ,ANSWER-the ,first ,drop ,typically ,has ,more ,tissue ,fluid.
Preanalytical ,errors ,are ,mistakes ,made ,- ,CORRECT ,ANSWER-before ,laboratory
,testing
What ,antiseptic ,should ,the ,phlebotomy ,technician ,use ,to ,collect ,a ,blood ,culture? ,-
,CORRECT ,ANSWER-Chlorhexidine ,gluconate
The ,main ,reason ,not ,to ,use ,expired ,evacuated ,tubes ,for ,blood ,specimen ,collection ,is
,- ,CORRECT ,ANSWER-they ,may ,exhibit ,incomplete ,filling.
Older ,patients ,are ,more ,prone ,to ,hematoma ,formation ,because ,- ,CORRECT
,ANSWER-their ,veins ,have ,decreased ,elasticity.
, What ,abnormal ,color ,will ,be ,observed ,in ,serum ,collected ,from ,a ,patient ,with ,jaundice
,due ,to ,elevated ,bilirubin ,levels? ,- ,CORRECT ,ANSWER-Yellow
Which ,substance ,has ,a ,higher ,concentration ,in ,capillary ,blood ,than ,in ,venous ,blood?
,- ,CORRECT ,ANSWER-Glucose
Which ,of ,the ,following ,actions ,could ,cause ,the ,formation ,of ,a ,hematoma? ,-
,CORRECT ,ANSWER-The ,needle ,penetrates ,all ,the ,way ,through ,the ,vein
To ,prevent ,glycolysis, ,which ,additive ,is ,used? ,- ,CORRECT ,ANSWER-Sodium
,Fluoride
When ,blood ,is ,inoculated ,into ,blood ,culture ,bottles ,using ,a ,butterfly ,apparatus ,the ,-
,CORRECT ,ANSWER-aerobic ,bottle ,in ,inoculated ,first.
Which ,of ,the ,following ,conditions ,would ,be ,most ,likely ,cause ,hemoconcentration? ,-
,CORRECT ,ANSWER-Dehydration
A ,collapsed ,vein ,will ,cause ,a ,- ,CORRECT ,ANSWER-cessation ,of ,blood ,flow
If ,a ,vein ,feels ,hard ,and ,thready ,like ,when ,palpated, ,then ,this ,vein ,may ,be ,-
,CORRECT ,ANSWER-sclerosed.
Blood ,smears ,made ,from ,EDTA ,specimens ,must ,be ,prepared ,within ,what ,period ,of
,time? ,- ,CORRECT ,ANSWER-1 ,hour ,of ,collection.
Alcohol ,should ,be ,allowed ,to ,dry ,completely ,prior ,to ,skin ,puncture ,to ,- ,CORRECT
,ANSWER-prevent ,lysis ,of ,red ,blood ,cells
Name ,an ,are ,from ,which ,blood ,should ,NOT ,be ,collected ,from: ,- ,CORRECT
,ANSWER-a ,Basilic ,vein
What ,color ,evacuated ,tube ,would ,be ,commonly ,used ,for ,coagulation ,testing? ,-
,CORRECT ,ANSWER-Light ,blue
Proper ,identification ,of ,a ,coherent ,adult ,inpatient ,includes ,- ,CORRECT ,ANSWER-
asking ,the ,patient ,their ,name ,and ,checking ,the ,identification ,band ,that ,is ,physically
,attached ,to ,the ,patient.
As ,the ,phlebotomist, ,you ,have ,just ,completed ,drawing ,the ,last ,blood ,sample ,tube,
,you ,place ,gauze ,over ,the ,puncture ,site, ,remove ,the ,needle ,from ,the ,arm, ,activate
,the ,needle ,safety ,device ,and ,then ,release ,the ,tourniquet ,before ,applying ,pressure. ,Is
,this ,the ,correct ,sequence ,of ,steps? ,- ,CORRECT ,ANSWER-No ,the ,tourniquet ,should
,be ,released ,first ,before ,the ,gauze ,pad ,is ,place ,over ,the ,puncture ,site