Part 2- Microbio Diagnosing - Sheet1 Flashcards
UTI presentation
Dysuria, frequency, urgency, suprapubic pain, WBCs (but no wbc casts)
Pyelonephritic presentation
WBC casts*, fever, chills, flank pain, CVA tenderness, hematuria
Predisposing factors for UTI
- Women (short urethras, colonized by fecal flora)
- obstruction
- kidney surgery
- catheterization
- GU malformations (vesicoureteral reflux)
- Diabetes
- pregnancy
Diagnosing UTI
- Positive leukocyte esterase test = Bacterial UTI
- Positive Nitrite test = Gram-neg bacterial UTI
Leading cause of UTI
E. coli
2nd leading cause of community-acquired UTI in sexually active women
Staph Saprophyticus
suck it, saprophyticus!
3rd leading cause of UTI
Large mucoid capsule, viscous colonies, positive urease
Klebsiella
Nosocomial and drug-resistant UTI
- Serratia Marcescens (produce cherry red pigment)
- Enterobacter cloacae
- Pseudomonas (blue-green pigment, fruit odor)
UTI: assoc w struvite stones. Motility causes “swarming” on agar, produces urease
Proteus mirabilis
Childhood rash: rash begins on face and moves down –> fine truncal rash, Postauricular lymphadenopathy
Rubella!
Childhood rash: beginning at head and moving down, rash is preceded by cough, coryza, conjunctivitis and blue-white/Koplik spots on buccal mucosa
Measles! (a paramyxovirus)
Childhood rash: Vesicular rash begins on trunk, spreads to face and extremities w lesions of different age**
Chickenpox (VZV)
Childhood rash: Macular rash over body appears after several days of high fever. can present w febrile seizures**. Affects infants
Roseola (HHV-6)
Childhood rash: “Slapped cheek” rash on face (can cause hydrops fetalis in pregnant woman)
Parvovirus B19
“Erythema infectiosum”
Childhood rash: Erythematous, sandpaper-like rash w fever and sore throat
Scarlet fever (Step pyogenes)
Childhood rash: Vesicular rash on palms and soles, ulcers* in oral mucosa
Hand-foot-mouth ds (Coxsackievirus type A)
STD: Urethritis, cervicitis, PID, prostatitis, epididymis, arthritis*, creamy PURULENT discharge
Gonorrhea (N. gonorrhoeae)
STD: Painless chancre
Primary syphillis (Treponema pallidum)
STD: Fever, lymphadenopathy, skin rashes, condyloma lata
2ndary syphillis (Treponema pallidum)
STD: Gummas, tabes dorsalis, general paresis, aortitis, Argyll Robertson pupil
Tertiary syphillis (Treponema pallidum)
STD: Painful genital ulcer, inguinal adenopathy
Chancroid (Haemophilus ducreyi - “it’s so painful, you DO CRY”)