CSMLS EXAM PREP Questions And Answers With Correct Solutions / Latest Updated 2025/2026

CSMLS EXAM PREP Questions And
Answers With Correct Solutions /
Latest Updated 2025/2026

Blood culture bottles - CORRECT ANSWES -- bacterial growth medium & activated
charcoal, inverted gently
pink/orange - anaerobic
blue - aerobic
silver - pediatric

Light Blue Tube - CORRECT ANSWES -- Contains Sodium Citrate. Used in
Coagulation dept. Tests for PT, PTT, Fibrinogen, clotting factors
Inversions: 3-4
3.2% buffered Na Citrate
HEMO

Lavendar tube - CORRECT ANSWES -- CBC, Blood smear, Platelets, SED rate, ESR,
HCT, HGB, Reticulocyte count, anti rejection drugs, HGBA1C
inversions: 8-10
K2EDTA commonly used

Pink Tube - CORRECT ANSWES -- blood bank, immunology
ABO & rh, antibody screen, TAS, prenatal screen
inversions: 8-10
ideally collect 2




F -> C - CORRECT ANSWES -- 5/9 (F - 32)

C -> F - CORRECT ANSWES -- 9/5C+32

K = C - CORRECT ANSWES -- K = C + 273

Deca - CORRECT ANSWES -- 10^1

,Hecto - CORRECT ANSWES -- 10^2

Kilo - CORRECT ANSWES -- 10^3

Mega - CORRECT ANSWES -- 10^6

Giga - CORRECT ANSWES -- 10^9

Tera - CORRECT ANSWES -- 10^12

Peta - CORRECT ANSWES -- 10^15

Exa - CORRECT ANSWES -- 10^18

Deci - CORRECT ANSWES -- 10^-1

Centi - CORRECT ANSWES -- 10^-2

Milli - CORRECT ANSWES -- 10^-3

Micro - CORRECT ANSWES -- 10^-6

Nano - CORRECT ANSWES -- 10^-9

Pico - CORRECT ANSWES -- 10^-12

Femto - CORRECT ANSWES -- 10^-15

Alto - CORRECT ANSWES -- 10^-18

Heparin Uses - CORRECT ANSWES -- chemistry, plasma testing, pregnancy,
electrolytes, venous gases, ammonia, osmotic testing

Urine Plates - CORRECT ANSWES -- SBAP, MAC

Mac conditions - CORRECT ANSWES -- 35C, aerobic

SBAP conditions - CORRECT ANSWES -- 35C aerobic

Wound plates - CORRECT ANSWES -- SBAP, CNA, MAC

CNA conditions - CORRECT ANSWES -- 35C aerobic

Anaerobic Wound Plates - CORRECT ANSWES -- anaerobic agar, brucella, anaerobic
48 hrs

, Brucella conditions - CORRECT ANSWES -- 35C anaerobic 48 hours

Brucella Medium - CORRECT ANSWES -- enriched medium - pneumococci,
streptococci

Mac medium - CORRECT ANSWES -- selective/differential medium, grows lactose
fermenters
crystal violet and bile salts inhibit gram +

CNA medium - CORRECT ANSWES -- selective medium

Basic media - CORRECT ANSWES -- nutrient agar, trypticase soy agar, blood agar
bases, brain heart infusion

Enriched media - CORRECT ANSWES -- blood agar, chocolate agar, fildes agar,
loefflers slants

Enrichment media - CORRECT ANSWES -- always FLUID, selenite F, 6.5% NACL

Selective media - CORRECT ANSWES -- CNA, PEA, thayer martin

Selective/Differential Media - CORRECT ANSWES -- Mac (prevents growth of gram +)
Hektoen, SS agar (salmonella)

Meuller-Hinton agar - CORRECT ANSWES -- non selective/differential, supports all
growth, contains starches which absorb toxins from bacteria so no interference with
antibiotics disks

Composition of Media - CORRECT ANSWES -- water, peptones, agar, buffers, salt

Additional ingredients of Media - CORRECT ANSWES -- carbs, ph indicators, blood
products, extracts, supplements and selective agents

Genital Vag - Non pregnant Media - CORRECT ANSWES -- Trichomonas wet prep

Genital Vag - Pregnant Plates - CORRECT ANSWES -- CNA - gbs screen, 35C aerobic

Genital Cervix/urethral Plates - CORRECT ANSWES -- CNA
GC Agar
both 35C 5-10% CO2 48 hours

NSBF plates - CORRECT ANSWES -- SBAP, Chocolate, anaerobic brucella
5-10% CO2 72 hrs
anaerobic 48hrs

Chocolate Media - CORRECT ANSWES -- enriched medium