Lecture 12.5: LE + Male Genitalia Lecture Flashcards
Erysipelas MC organism is…
GAS
Upper dermis only
The GAS tank is Empty
Cellulitis MC organism is…
Staph
Skin and SQ tissue
Cellulitis has () borders, while erysipelas has () borders.
- Cellulitis = Ill-defined borders
- Erysipelas = Well-defined/Demarcated borders
Cellulitis & Erysipelas
- Concerned for abscess? Order a ()
- Concerned for DVT? Order a ()
- Concerned for osteomyelitis? () or ()
- Concerned for systemic infection/bite? order a set of ()
- Abscess: US
- DVT: Venous Doppler US
- Osteomyelitis: XR or CT
- Systemic: Serologies (CBC, CMP, cultures)
Cellulitis & Erysipelas
Outpatient management of NO MRSA RISK
Keflex or Clinda
Cellulitis & Erysipelas
Outpatient management of MRSA RISK
Bactrim, Doxy, Clinda
Cellulitis & Erysipelas
You should follow up after starting outpatient abx in () to () hours
48-72 hours
Cellulitis & Erysipelas
Inpatient admit + IV ABX via Rocephin, Ancef, or Clinda +/- Vanco/daptomycin are indicated if you meet at least 2 of these sepsis criteria:
- Temp > ()
- HR > ()
- RR > ()
- WBC < () or > ()
- SBP < ()
- AMS
- Lactic acid > 2
- Immunocompromised
- Temp > 100.4F/38C
- HR > 90
- RR > 20
- WBC < 4k or > 12k
- SBP < 100
Pretty much SIRS criteria
MC pathogen for a cutaneous abscess
Staph
T/F: Cutaneous abscesses can spontaneously drain
True
T/F: You need diagnostics to evaluate a cutaneous abscess
False.
Prior to doing an I&D on an abscess, you need…
Informed consent
After I&D and packing a cutaneous abscess, you should follow up in ()
2-3 days
ABX prophylaxis is indicated prior to I&D of a cutaneous abscess if the patient is at high risk for what cardiac condition? What is the ABX?
- High risk for endocarditis
- Must use IV clinda or vanco 30-60 mins prior.
ABX prophylaxis is indicated in severe cutaneous abscess presentations, such as immunocompromised or septic patients. The ABX used primarily are (), and if they show signs of sepsis, you must add on () or ().
- IV vanco, linezolid, or clinda
- Add on Zosyn or meropenem
A moderate to severe cutaneous abscess is indicated by this criteria
- Lesion > 2cm
- Surrounding cellulitis
- Signs of systemic infection
Oral therapy using (3 options) can be used for abscesses with risk of MRSA as long as it is a moderate presentation and the patient is ()
- Bactrim, doxy, clinda
- Patient must be immunocompetent
Patient education for a cutaneous abscess discharge include:
- Keeping the wound (wet/dry)
- Removing the dressing after 2-3 days
- Keep wound dry
- DO NOT REMOVE dressing (come back to ED/PCP to remove)
Most useless physical exam test for DVT
Homan’s sign
You should suspect DVT in someone with ()lateral extremity swelling that is greater than () cm in difference when measured 10 cm below the tibial tubercle.
Unilateral swelling >= 2 cm in diff.
- Phlegmasia alba dolens describes a large proximal DVT that is (color).
- Phlegmasia cerulea dolens describes a large proximal VT that is (color)
- Alba dolens = white/pale
- Cerulea dolens = dusky blue
Well’s DVT scores of 2 or less = ()
D-dimer
High bleeding risk in a DVT is the presence of () or more risk factors.
2
I wrote that you just need to know # of RFs, not the actual RFs
A proximal DVT with NO limb ischemia can be treated with () if high bleeding risk, or () if mod-low bleeding risk.
- High bleed risk = IVC filter
- Mod-low bleed risk = DOAC or LMWH