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48 Cards in this Set

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  • Back

CP: Rapid EKG interpretation

STEMI: 1mm elevation in 2 contiguous leads

 

Rhythm: P before every QRS (sinus)

Axis: if upright in I and AVF, nl!

 

Ischemia:

- flipped T waves: can be ischemia

- elevations: infarction

- depression: infarction opposite of that lead

 

STEMI: 1mm elevation in 2 contiguous leads


 


Rhythm: P before every QRS (sinus)


Axis: if upright in I and AVF, nl!


 


Ischemia:


- flipped T waves: can be ischemia


- elevations: infarction


- depression: infarction opposite of that lead


 

CP: history

associated s/s: N/V, diaphoresis, abdominal pain or back pain, syncope

 

similar to previous pain or MI?

 

Past hx: HTN, hyperlipidemia, MI, CHF, echo with EF in chart?

 

h/o stress tests or caths: confirm if possible (negtaive cath can s...

associated s/s: N/V, diaphoresis, abdominal pain or back pain, syncope


 


similar to previous pain or MI?


 


Past hx: HTN, hyperlipidemia, MI, CHF, echo with EF in chart?


 


h/o stress tests or caths: confirm if possible (negtaive cath can still have 30% occlusion)


 


Meds: BP meds, statins, ASA, plavix, coumadin, pradaxa (dabigatran) -> ask about viagra in case of getting nitro)

CP: PE

volume: volume up, down, or euvolemic


CV/Lungs: murmurs? wet lungs or wheezing?


Abdominal and back exam: palpable AAA?


Legs: edema or swelling?


pulses: asymmetric deficits suggest a dissection

CP: differential

PET MAC: 


 


PE Esophageal rupture, Tension PTX


MI Aortic dissection Cardiac tamponade

CP: workup

Every patient: CXR and EKG -> chest pain + suspicious EKG (ST elevation or new LBB (widened qrs))


 


CXR: PTX, dissection (about 60-70% sensitive), esophageal rupture


 


Labs: CBC (anemia), Chem10 (electrolyte abnormalities), Coags (baseline), Cardiac Enzymes (troponin, CK)

CP: treatments

1) ASA 325mg PO


2) nitroglycerin (0.4mg sublingual q5 min x 3 total dose, holdsystolic BP < 100 or pain free, contraindicated with viagra, cialis, etc.) -> have an IV in place before giving nitro, if hypotensive usually fluid responsive to 500c NS bolus, avoid nitro in posterior MIs. 


 


3) if pain refractory to above, morphine and zofran


 


4) get a pain free EKG!!! make sure no changes


 


5) if patient has persistent pain despite interventions, consider unstable angina and admission to CCU instead of tele floor

CP: pulmonary embolism risk factors, PEARL, w/u, PEARL

Symptoms- pleuritic chest pain, SOB, tachycardia, tachypnea, hypoxia


Risk factors- OCPs, pregnancy, trauma, recent surgery, malignancy


PEARL- Therapeutic INR (2-3) is NOT 100% protective against PE


Workup- EKG and CXR


CBC (low yield but consultants want it)


Chem 10 (creatinine for a CT)


Coags (baseline)


PEARL- DON’T indiscriminately order D-dimers

CP: pulmonary embolus decision making

Decision making in PE


First step- Gestalt (“gut feeling”)


Low probability- no workup or proceed to PERC criteria below


Moderate or high probability- CT pulmonary angiogram (CTPA)


 


PERC criteria- low risk gestalt PLUS all of the following- BREATHS


Blood in sputum (hemoptysis)


Room air sat <95%


Estrogen or OCP use


Age >50 years old


Thrombosis (in past or current suspicion of DVT)


Heart rate >100 documented at ANY time


Surgery in last 4 weeks



 

CP: pulmonary embolus -> treatment

 


If negative- no testing (risk of PE 1.8%, risk of anti-coagulation 2%)


If positive- if negative D-dimer- no further testing, if positive- CTPA


 


Treatment


If you diagnose a PE- get cardiac enzymes and BNP for risk stratification


Regular PE (vitals stable, no elevation in cardiac enzymes or BNP)- lovenox (enoxaparin) 1mg/kg SQ, admit


Submassive PE (vitals stable with elevation in CEs or BNP, right heart strain on echo)- lovenox 1 (enoxaparin) mg/kg SQ, strongly consider ICU admit


Massive PE (unstable vitals, systolic BP less than 90 at any time)- thombolytics and ICU admit, ?interventional radiology intervention

CP: esophageal rupture -> hx, dx, tx

 


History- recent forceful vomiting, recent endoscopy, alcoholic, sick and toxic looking patient


Chest x-ray- Free air under diaphragm, rigid abdomen on exam


Treatment- resuscitation, surgical intervention



CP: aortic dissection -> pearl, risk factors, exam, dx, testing

Aortic dissection - ripping or tearing chest that goes into the back or shoulder area


PEARL- Chest pain + motor or neuro deficit OR chest pain but a seemingly unrelated complaint elsewhere in the body- think about dissection- aorta connects them both


Risk factors- HTN (#1), pregnancy, connective tissue diseases (Marfan’s and Ehler-Danlos)


Exam- unequal BPs (more than 20 mmHg, 60-70% sensitive), pulse deficits (20% sensitive)


Chest x-ray- widened mediastinum (60-70% sensitive)


Testing- CT Aorta with contrast, TEE if dye allergy or creatinine elevated, cardiac MRI



 

Abdominal Pain: history, female considerations, medical hx

History


Look at the triage note and vitals and address them


Before talking the patient- look at them as they sit on the stretcher


           Appendicitis- usually want to remain very still


           Kidney stones- usually writhing, can’t get comfortable


OPQRST questions about pain


           Onset, Provocation, Quality, Radiation, Severity, and Time


Associated signs and symptoms


           Nausea/vomiting/diarrhea, back pain, urinary symptoms


Female patients


           Missed periods, vaginal bleeding, discharge


PO intake


           Relation of pain to food intake, worse pain with movement?


Medical history


           Special attention to surgical history, previous colonoscopy

Abdominal Pain: exam

Don’t dive for the abdomen- do an HEENT exam, heart/lung exam


Uncover the abdomen and ask patient to point where it hurts the most


Check bowel sounds first


           Can press down with stethoscope to see if they are tender


Start pressing opposite of where they have pain


           Start lightly and presser harder


           If they have trouble relaxing, bend knees to 45 degrees


Peritoneal signs- usually indicate appendicitis or other surgical pathology


           Lightly shake stretcher- for kids- have them jump up and down


           All of these signs are positive if increased pain in RLQ


           Psoas sign- roll onto left side, extend leg back


           Obturator sign- flex and externally rotate right leg


           Rovsing’s sign- push in LLQ, pain in RLQ


           Reverse Rovsing’s- push in RLQ, pain in LLQ (diverticulitis)


           Murphy’s sign- patient takes a deep breath, push in RUQ,


positive if patient stops inhaling due to pain


PEARL- Do a testicular exam in all males- don’t miss a torsion!

Abdominal Pain: workup

 


Labs- not everyone needs them but if you think it’s surgical abdominal pain, get them (reasons for getting them in parentheses)


 


UA/HCG for females (no culture unless you admit or treat for UTI)


CBC (consultants want them, up to 30% of appys have normal WBC)


Chem 10 (hypokalemia can cause an ileus, low bicarb= acidosis, creatinine for a CT)


Coags (standard pre-op lab, liver disease elevates coags before LFTs)


LFTs (cholecysitis workups, may not need them for an appy)


Lipase (pancreatitis, amylase is unnecessary- not sensitive or specific)


VBG with lactate (for older patients, high lactate = bad disease)

Abdominal Pain: pain control

Pain control- don’t withhold it!  Morphine 0.1mg/kg IV, most start with 4-6mg IV though.  Write PRNs if you can.  Give Zofran (ondansetron) 8mg IV to counteract nausea/vomiting.  Benadryl (diphenhydramine) 25mg IV PRN for itching


 


PEARL- Demerol (meperedine) is a poor choice of opiate to use.  It has lots of side effects and causes lots of euphoria.  It doesn’t cause clinically significant sphincter of oddi spasm- that is a myth, there’s really no reason to use it all.  Morphine, fentanyl and dilaudid (hydromorphone) are all excellent painkillers


 


Give IV fluids- younger people 1-2 liters, older patients- 500cc at a time

Abdominal Pain: differential dx

           Appendicitis


           Cholecystitis


           Pancreatitis


           Diverticulitis


           Bowel obstruction


           Bowel perforation


           Mesenteric ischemia


           Kidney stone


           Gastritis


           Gastroenteritis


           AAA

Abdominal Pain: imaging according to pain distribution

How to image the abdomen effectively by quadrants (female specific causes excluded!) (CT A/P= CT abdomen and pelvis)


 


LUQ abdominal pain- rarely requires imaging unless you have a rigid abdomen or suspect a bowel obstruction


 


Epigastric- rarely requires imaging.  May get it for pancreatitis to check for pseudocyst but probably doesn’t need it in the ED.  If you find pancreatitis, check a RUQ US for gallstone pancreatitis


 


RUQ pain- RUQ US is the best test for cholecystitis


 


RLQ pain- CT A/P for appendicitis.  Can be done without contrast with same results, some institutions require PO and/or IV contrast


 


Suprapubic- in isolation- usually a UTI


 


LLQ pain- CT A/P for diverticulitis, once again +/- IV and or PO contrast


 


Flank pain- CT A/P without contrast for kidney stones, CVA tenderness


PEARL: 20-30% of patients with stones have NO hematuria on UA


 

Abdominal pain: mesenteric ischemia

Mesenteric ischemia- clot thrown into mesentery or low flow state,


Classically an older patient with a-fib with pain out of proportion (patient in lots of pain but not tender on exam).  Low flow mesenteric ischemia is usually a hypotensive patient on pressors in the ICU.  Diagnosed with CT angiogram A/P.  Need emergent surgery and/or interventional radiology



 

Abdominal pain: bowel obstruction

Bowel obstruction- patient with multiple abdominal surgeries, diffuse abdominal pain and vomiting as their chief complaint. Diagnosed with CT A/P, PO contrast is helpful


 

Abdominal pain: bowel perforation

Bowel perforation- usually from a perfed ulcer or recent colonoscopy- be concerned if they have a rigid abdomen.  Upright Chest x-ray can be helpful if you see free air, need the OR emergently


 

Abdominal pain: AAA

AAA- back pain, abdominal pain, syncope, hematuria among other presentations, elderly patient with HTN, use ultrasound to diagnose at bedside- over 5cm needs the OR immediately, 2-5cm needs followup

Abdominal pain: everything looks negative but concerning abdominal exam

surgery consult! (nothing is 100%)

D/c instructions abdominal pain: 

Discharge instructions for abdominal pain


Document a repeat abdominal exam before discharge


Sample discharge conversation with the patient:


 


I think you have a GI bug.  These usually get better on their own but we can make you feel better with zofran so that you can keep fluids down.  However, I have been fooled before and sometimes early appendicitis presents like a GI bug.  So if you go home and have increased pain, if you are vomiting constantly despite the zofran, if you develop new pain or it moves to your right lower abdomen, or if anything else is concerning you, please come back into the ER.  Also, if you don’t feel better in 12-24 hours, you should come back in as well.


 


PEARL- don’t discharge your patients with an excessive number of anti-emetics.  If they are taking zofran or Phenergan  every 6 hours and they aren’t better they need to come back to the ED, 5 tablets or ODTs is usually sufficient


 

Female Abdominal Exam: history

History


First question- is the patient pregnant?


           -Urine HCG and UA often done from triage


           -If delay in getting urine, get an IV and check a


serum qualitative HCG


OPQRST questions about pain


           Onset, Provocation, Quality, Radiation, Severity, and Time


Associated signs and symptoms


           Nausea/vomiting/diarrhea, back pain, urinary symptoms


Female specific questions


           Missed periods, vaginal bleeding, discharge


Gs and Ps


           G= Pregnancies P= Live births- know them for OB consultation


Medical history


Special attention to surgical history, history of ectopic pregnancies or spontaneous/elective abortions


Sexual history


               Is the patient sexually active currently or in the past?


               (Kick parents out of room for younger patient)


               Monogamous relationship?


               History or concern for STDs?



 

Female Abdominal Exam: Exam

Exam


Don’t dive for the abdomen- do an HEENT exam, heart/lung exam


Uncover the abdomen and ask patient to point where it hurts the most


           Top of iliac crest- more often abdominal cause of pain


           Lower towards inguinal ligament- pelvic pathology


           Not absolute but can help you guide your workup


 

Female Abdominal Exam: Differential dx

Differential Diagnosis


Ectopic Pregnancy


Threatened abortion/miscarriage


Normal pregnancy


STDs- Gonorrhea, Chlaymdia, Trichomonas


Pelvic Inflammatory Disease


Tubo-Ovarian abscess


Ovarian Torsion


Ovarian Cyst


Bacterial Vaginosis


Vaginal Candiadiasis (BV and Candiadiasis don’t cause pain but are frequently encountered in the workup)

Female Abdominal Exam: workup

Workup


UA and HCG (looking for UTI, pregnancy status)


CBC (check for WBC- low yield and anemia)


Chem 10 (standard part of abdominal pain workup)


LFTs


Lipase


Coags (these may not be necessary in every patient- let your clinical judgement be your guide but appy often overlaps with pelvic pathology)


Pelvic Exam


           GC/Chlaymdia


           Wet Prep/KOH


           Quantitative HCG (if the patient is      pregnant)



 

Female Abdominal Exam: pelvic exam tips

Pelvic Exam tips


 


Do an external exam to look for lesions or obvious discharge


As you insert the speculum, examine for lesions or discharge


GC and Chlamydia swab- insert in cervix and twist 360 degrees


Wet Prep/KOH- swab vaginal walls


Bimanual exam


           Touching the cervix is uncomfortable- do this slowly


           Say to the patient “I know this is uncomfortable but does this


hurt when I move my fingers” and look for reaction.


If the patient seems comfortable this is NOT cervical motion tenderness


If the patient is in a lot of distress, then this is CMT


Check the adnexa


Palpate the abdomen while checking adnexa to see where the patient has the most pain


 

Female Abdominal Exam: imaging

PEARL- HUGE overlap between pelvic and abdominal pathology- keep your differential open


 


Transvaginal Pelvic ultrasound- helpful in suspected ectopic pregnancy (covered in a later podcast).  Should see IUP at HCG of approximately 1,500


 

Female Abdominal Exam: Ovarian Torsion

Ovarian Torsion- “Classic”- Sudden onset of sharp stabbing pain in lower abdomen with nausea or vomiting.


PEARL- A negative pelvic ultrasound DOES NOT rule out torsion


           Intermittent torsion is possible


           Time sensitive diagnosis- ovary salvage rate greatly declines after


4 hours


High suspicion= OB/GYN consult and admission for observation


           Most torsions have large cysts but not all


PEARL- If radiologist doesn’t want to do TVUS after hours because “an ultrasound doesn’t rule out torsion”, say you are concerned for tubo-ovarian abscess or large hemorrhagic cyst



Female Abdominal Exam: Ovarian cyst

Ovarian Cyst- Cyst on same side as pain with good blood flow to ovary


           Can be discharged with pain control, OB/GYN followup


 

Female Abdominal Exam: STDs

STDs


Treatment depends on how fast your GC/Chlamydia test is


Send-out = Empirically treat all patients with discharge and/or CMT


PEARL- ALWAYS treat for gonorrhea and chlamydia


(Often co-exist and missing it can have long term fertility consequences)


 


Cervicitis treatment (no CMT but positive swab)


           Ceftriaxone 125mg IM


           1 gram of azithromycin PO x1 dose


           (PCN or cephalosporin allergic- 2 grams azithromycin PO x1)


PID treatment (CMT and/or discharge)


           Ceftriaxone 250mg IM


           Doxycycline 100mg PO BID for 14 days


 


PEARL- Admit patients who are ill appearing, pregnant, unresponsive to outpatient treatment, PO intolerant


Caution patient to not have sex for seven days after treatment stopped and to get partner tested to avoid re-infection

Female Abdominal Exam: Fitz-Hugh Curtis

Fitz-Hugh Curtis- PID infection that has spread to the liver capsule and causes perihepatitis- may have RUQ pain and tenderness, right shoulder pain.  LFTs may be elevated but not always.  Treatment is to treat for PID



 

Female Abdominal Exam: tubo-ovarian abscess

Tubo-Ovarian Abscess- non-specific symptoms- abdominal/pelvic pain, history of STDs, severe or recurrent PID.  Usually untreated PID that has formed an abscess.  Diagnosed with TVUS, treated with IV abx, surgical drainage


 

Female Abdominal Exam: trichomonas, BV, Candidiasis

Trichomonas- Motile organisms on Wet Prep.  Sxs- itching, discharge, dysuria dyspaurenia


               Tx- Flagyl (metronidazole) 2 grams PO x1 or 500mg PO BID for 7 days


               Treat partner as well- men are often asymptomatic


               No alcohol while on flagyl (disulfaram reaction = vomiting)


Bacterial Vaginosis- not an STD but frequently diagnosed- overgrowth of Gardanella Vaginalis.  Sxs- malodorous diascharge.  Clue cells on Wet Prep


               Treat all symptomatic patients AND pregnant patients


               Tx- Flagyl (metronidazole) 2 grams PO or 500mg PO BID for 7 days


Candiadiasis- “yeast infection” usually after abx. Fungal elements on Wet Prep.


               Treatment- Fluconazole- 150mg PO x1 or topical treatments


               Topical treatments can control sxs better, can use with fluconazole


PEARL- with all pelvic swabs- false negatives occur so treat clinically for what you think is the most serious cause



 

Headache: history

History- OPQRST questions


Headache red flags (concerning for subarachnoid hemorrhage (SAH))


-Sudden or gradual in onset


-Worst of life? (Ask patient “how does this compare to your other headaches?)


-Maximal at onset (worst when it started or did it gradually get worse?)


-Associated symptoms- sensitivity to light/sound, nausea/vomiting, vision changes, slurred speech, weakness, syncope, ataxia, dizziness, fever, neck pain


-Previous headaches/workups- previous CT/MRIs?


 


DOCUMENTATION- on every headache whom I am not suspecting a SAH I write “I doubt SAH/ICH given headache is not worst of life, not maximal or sudden in onset with multiple normal neuro exams”


 

HA: neuro exam

Cranial nerves


               -Pupil response, papilledema


               -Extraocular movements


               -Facial sensation


               -Puff out cheeks


               -Smile symmetry


               -Shrug shoulders


               -Turn head left and right, flex and extend


Upper extremity Motor strength


               -Grip strength


               -Push towards/away while still holding grip


               -Pronator drift- palms up, arms at shoulders, close eyes


                               -Positive if asymmetry or if one arm falls


Fine motor and cerebellar exam


               -Nose to finger- have patient touch their nose then your finger


-Rapid alternating movements- hands in lap, rapidly pronate/supinate


-Finger movements- touch 2nd finger to thumb, move to 3rd-5th fingers


-Gross sensation- check upper extremities on both sides for differences




Lower extremity motor strength


               -Hip flexors- place hand above knee, have patient push upwards


               -Hip extensors- place hand under thigh, have patient push downwards


               -Leg extension- hold knee up, extend lower leg


               -Leg flexion- hold knee up, flex lower leg


               -Foot flexion- push “down on the gas pedal” with foot


               -Foot extension- push “up towards your head” with foot


               -Gross sensation lower extremities


Gait- very important to test


               -Walk towards and away from you- look for instability


               -Walk on heels and then toes


               -Romberg- face away from you with palms and arms up, closes


eyes, stand behind patient, swaying is ok, falling backwards is positive


Reflexes- low yield in headaches but part of a full neuro exam


 

HA: differential

Headache differential


 


Subarachnoid hemorrhage (SAH)- sudden onset of worst headache of life that is maximal at onset, headache with syncope, ruptured aneurysm or trauma


 


Bacterial meningitis/encephalitis- fever and headache, stiff neck, toxic appearing


 


Temporal arteritis- “Classic” presentation- 60 year old female with unilateral throbbing temporal or frontal headache with tenderness on temporal area


 


Carbon monoxide poisoning- cold climate with a furnace at home


Tumor or mass- neuro deficit with insidious onset


Subdural hematoma- spontaneous bleed in a patient on anticoagulation or an alcoholic patient without trauma, or a patient with major trauma


Epidural hematoma- trauma to temporal area (middle meningeal artery), lucid interval with decompensation, blown pupil


Acute angle glaucoma- older patient in a dark area then has their pupil dilated (movie theatre), non-reactive pupil


Hypertensive emergency- very elevated blood pressure in the setting of end organ damage (renal failure, stroke, intracranial bleeding, MI, aortic dissection)


Tension headache- most common discharge diagnosis, band-like pain that is non-pulsating and dull


Migraine headache- unilateral pulsating or throbbing pain, nausea/vomiting, photo/phonophobia, visual changes/aura


Cluster headache- younger male with unilateral sharp stabbing pain to the eye, associated injection and tearing, responds well to high flow oxygen


 

HA: labs

Labs


-Low yield- get a pregnancy test on females (some meds class C and D)


-If doing an LP- CBC (platelets) Chem 10 (electrolytes) Coags (coagulopathy)


-LP labs- cell count tubes 1 and 4, glucose/protein, gram stain/culture (if suspecting meningitis)



 

HA: imaging

 


CT head without contrast- detects acute bleeds, sensitivity about 90%, current practice is that a negative head CT is followed by an LP


 


Lumbar Puncture (LP)


Looking for xanthachromia (yellowish tinge of fluid from RBC breakdown) or elevated RBC count


               -Usually in the 1,000s- 10,0000s with SAH but no cutoffs have ever


been defined


-No cutoff below which SAH can be excluded (reported as low at 800


RBCs), “clearing” of RBCs between tubes 1 and 4 does not rule out SAH


-Best if you can get RBC counts <100 but if story is concerning, may


need CTA brain (with contrast) or MRI to rule out SAH



HA: special populations

Special populations


Pediatrics- persistent vomiting, vomiting first thing in the morning may be a tumor


Elderly- low threshold to CT, be aware of temporal arteritis- elevated ESR and/or CRP need high dose steroids and urgent temporal artery biopsy to confirm diagnosis (by opthomology/general surgery), don’t delay steroids


 

HA: treatment

Treatment


Compazine (prochlorperazine)- 10mg IV


Benadryl (diphenhydramine) 25mg IV, can run in 1 liter of normal saline


(Compazine/prochlorperazine is Class C in pregnancy)


PEARL- Compazine/Benadryl proven more effective in ED patients than triptans


Run this slowly to prevent akasthesia from Compazine


 


Reglan (metoclopramide)- 10mg IV, instead of Compazine/benadryl, class B in pregnancy


 


Toradol (ketorolac)- 30mg IV


-Caution in older patients, those with renal failure or insufficiency


-Class C in third trimester only but generally not given to any pregnant patient, -Don’t use if suspecting subarachnoid without doing CT first (anti-platelet medication)


Decadon (dexamethasone)- 10mg IV- shown to reduce return rates in patients with migraine


 

Back Pain: history

Triage note- incontinence/urinary retention? Leg weakness? Fever?


 


History- OPQRST about pain


Pain worse at night or wakes the patient up from sleep (red flag) vs. gets worse gradually as the day goes on


Numbness or tingling to groin (saddle) area?


Urinary/stool retention (early sign) or incontinence (late sign)


Does it feel different when you wipe yourself when you go to the bathroom?


Fever, night sweats, or unintended weight loss?


IV drug use?



Complete medical hx: htn, dm, known aaa, ca?

Back Pain: Exam

Exam- complete HEENT exam, heart and lungs


Ask patient to point where it hurts- CVA vs. midline?


Abdominal exam- tenderness? (different workup if abdominal + back pain)


In males- testicular exam


Sensory exam of saddle area


Rectal exam- can use selectively (20 year old lifting a box probably doesn’t need it, 60 year old with incontinence does)


               -Check perianal sensation as well as tone


Lower extremity motor exam


               Hip flexor- hand on knee, push up


               Hip Extensor- hand on posterior thigh, push down


               Leg flexor- hold knee up, hand on lower leg, push up


               Leg Extensor- hold knee up, hand on calf, push down


               Ankle extensor- hand on bottom of foot, “push down on the gas”


               Ankle flexor- hand on the top of foot, push up towards the head


 


Lower extremity sensory exam- check sensation on both sides


Straight leg raise test- patient on their back, with straight leg, raise it to 30 to 70 degrees, if pain in sciatic distribution from buttocks to knees suggests a herniated disc


 

Back Pain: Differential Dx

Abdominal Aortic Aneurysm- older patient with hypertension and new onset back pain, possibly hematuria.  Use bedside ultrasound- symptomatic AAA 5cm or larger needs the OR immediately, 2 to 5 cm needs referral for followup


 


Aortic Dissection- can be chest and/or back pain, ripping and tearing quality to pain, most have history of hypertension


 


Renal colic/urolithiasis (kidney stone)- usually younger patients with sudden onset unilateral back pain with CVA tenderness, microscopic hematuria in 70-80%, usually writhing on stretcher, can’t get comfortable


 


Cauda Equina Syndrome- bowel or bladder retention/incontinence, sudden onset of ripping or tearing back pain, saddle anesthesia, represents an acutely herniated disc, needs an emergent MRI for diagnosis, managed emergently in the OR


 


Epidural abscess- IV drug user with fever and back pain, also in diabetics or patients with recent epidural injections, needs an emergent MRI for diagnosis


 


Tumor or mass- patients with weight loss, night sweats, back pain at night or wakes up from sleep, history of cancer, needs emergent MRI, may need emergent radiation therapy to shrink tumor burden to preserve function


 


Fracture- direct trauma, pathologic fractures, pain in the middle of the back


 


Pyelonephritis- back pain and a fever with or without urinary symptoms


 


Abdominal pathology- a reminder that this can present with pure back pain


 


Zoster- older patient with dermatome distribution of pain, pain can precede vesicles by several days


 


Musculoskeletal sprain/strain- diagnosis of exclusion once the above have been addressed, most common discharge diagnosis


 

Back Pain: most serious causes

PEARL- Major serious causes of back pain- CRAFTI


 


Cauda Equina


Renal


Aorta (aneurysm or dissection)


Fracture


Infection


 

Back Pain: Workup

Labs- usually low yield


 


UA- low threshold especially in female patients (UTI)


CBC/Chem 10/ type and cross for 8 units/emergency release blood- if suspecting AAA


ESR/CRP- elevated in epidural abscess


 


Imaging


 


Bedside ultrasound- for AAA- if larger than 5 cm and symptomatic = OR STAT


CT Aorta with contrast- if suspecting aortic dissection


CT Abdomen/Pelvis without contrast- if suspecting kidney stone


Plain films- generally low yield


 


American College of Radiology guidelines for plain films


 


Recent significant trauma or milder trauma age >50


Unexplained weight loss


Unexplained fever


Immunosuppression


History of cancer


IV drug use


Osteoporosis


Prolonged use of steroids


Age >70


Focal neuro deficit or disabling symptoms


Duration greater than 6 weeks


 


Emergent MRI- needed for diagnosis of cauda equina, epidural abscess, tumor


 


Post-void residual- useful in diagnosis of cauda equina- ask the patient to urinate then insert urinary catheter, normal is less than 100 cc


Bedside ultrasound post void residual- ultrasound the bladder in transverse plane (indicator to the right), use the calculation function (sonosite) for volume, get maximal horizontal and vertical measurements, hit “save calc”, turn the probe 90 degrees (indicator towards the head) and measure largest depth, hit “save calc”, sonosite will calculate volume


 


Diagnostic philosophy- assume a serious cause, do a good history, physical, and exam and check for red flags, if not concerning, try to talk yourself into a serious cause, if you can’t then you can end workup


 

Back Pain: treatment

Toradol (ketorolac)- 30mg IV, caution in older patients and those with renal failure/insufficiency


 


Morphine- 0.1 mg/kg IV is a good starting dose, zofran (ondansetron) IV as needed for nausea/vomiting, be sure the patient has a ride


 


Vicodin (hydrocodone/acetaminophen)-  discharge medication, 1-2 tabs q4-6 hours PRN, no more than 15 tablets


 


Flexeril (cyclobenzaprine)- analgesia and sedation 5- 10mg PO three times per day


 


Valium (diazepam)- 5mg PO three times per day, don’t take within 4 hours of vicodin, can use at night for sleep


 


PEARL- If you are prescribing sedating medications or opiates, tell the patient not to drive or drink alcohol while using these medications, document on their chart (sedation warnings given)