Medical Laboratory Science (MLS4117) 2025/2026 – 500 Exam Questions & Answers on Microbiology, Pathogens, Culture Media, Diagnostics

MLS 4117 Final Updates |
2025/26 Expert Verified | Ace
the Test



Transport media for Bordatella pertussis - 🧠 ANSWER ✔✔Regan-Lowe

transport media


Transport media for Campylobacter spp. - 🧠 ANSWER ✔✔Cary-Blair


Transport media for Corynebacterium diptheriae - 🧠 ANSWER ✔✔Loeffler

or Blood Slant

,Transport media for Escherichia coli (hemorrhagic or HUS) - 🧠 ANSWER

✔✔TSI, Nutrient Agar Slant, Blood slant, TSA slant


Transport media for E. coli O157:H7 - 🧠 ANSWER ✔✔TSI, Nutrient Agar

Slant, Blood slant, TSA slant


Transport media for Haemophilus influenzae - 🧠 ANSWER ✔✔Chocolate

slant


Transport media for Listeria monocytogenes - 🧠 ANSWER ✔✔Blood slant


Transport media for Mycobacterium spp. - 🧠 ANSWER ✔✔Lowenstein-

Jensen or Middlebrook agar


Transport media for Vibrio spp. - 🧠 ANSWER ✔✔TSI, Nutrient Agar Slant,

Blood slant, TSA slant


Transport media for VRE - 🧠 ANSWER ✔✔Blood, chocolate, or nutrient

agar slant


Transport media for Yersinia enterocolitica - 🧠 ANSWER ✔✔TSI, Nutrient

Agar Slant, Blood slant, TSA slant


Transport media for Neisseria meningitidis - 🧠 ANSWER ✔✔Chocolate or

blood slant

,Transport media for Salmonella spp. - 🧠 ANSWER ✔✔TSI, Nutrient Agar

Slant, Blood slant, TSA slant


Transport media for Shigella spp. - 🧠 ANSWER ✔✔TSI, Nutrient Agar

Slant, Blood slant, TSA slant


Transport media for Streptococcus pneumoniae - 🧠 ANSWER ✔✔Blood or

chocolate slant

Non-motile, Gram - coccobacillus, Catalase+, Oxidase -, MAC+ at 30-35C,

TSIA (K/K); nosocomial hospital equipment, vent-associated pneumonia

and sepsis, bronchitis, endocarditis, UTI, Eye

Two most common clinical species are A. baumanii and A. lwoffii

A. baumannii causes more infection than A. lwoffii

A. baumannii is saccharolytic and A. lwoffii is asacharolytic

A. lwoffii more susceptible to antibiotics than A. baumannii

oxidase -, catalase +, non-motile, purple hue on MAC - 🧠 ANSWER

✔✔Acinetobacter


Motile, Gram - rods, purplish green on SBA, Catalase+, Oxidase -,

Esculin+, DNAse+, Gelatin hydrolysis+, MAC (clear/blue), TSIA (K/K),


COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2026. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
3

, nosocomial health equipment, found in food; bronchitis, endocarditism eye,

meningitis, common in CF; risk for immunosuppression, ICU, central

venous cath


normal flora, SXT (S) - 🧠 ANSWER ✔✔Stenotrophomonas maltophila


Gram+ cocci, B-hemolytic, ferments mannitol (MAC/MSA+, yellow), Coag+,

Catalase+, Oxidase -, Bacitracin (R); Food poisoning, conjunctivitis, TSS;

leucocidin, Protein A, Non-spore, Non-Motile - 🧠 ANSWER ✔✔staph

aureus

Intracellular, encapsulated, Gram - diplococcus, Cat +, Ox +, Penicillin (S),

glu + malt fermentation, TSIA (K/K), meningitis, septicemia, grown in 5%

CO2, SBA and CHOCALATE. CSF and Blood or Skin lesions or symptoms.

- 🧠 ANSWER ✔✔neisseria meningitidis


Pleomorphic non-gram staining molicutes, slow growth, "Fried egg" shape

with center growing into agar, strict aerobe, Cold agglutinin test +' 20% of

pneumonias, pharyngitis, "Walking pneumonia";most common cause of

pneumonia in young adults, smallest free living organism, lack cell walls,

aerobe, - 🧠 ANSWER ✔✔mycoplasma pneumoniae