Diagnosis Flashcards
Transmitted pulsatile movement from heart activity
Indicates absence of ventilation
Atelectasis
Lung pulsations
Pathognomonic for pneumothorax
The point where the parietal and visceral pleura come back together 
Lung point
Pneumothorax
Mainstem intubation
ARDS
Severe pulmonary contusion
Pulmonary fibrosis
Severe asthmatic (no air movement)
Foreign body aspiration 
Differential diagnosis for absent lung sliding 
RA/RV diastolic collapse
Mitral/tricuspid flow velocity with > 25% respiratory variation
IVC plethora without respiratory variation
Sonographic pulsus paradoxus 
Signs of cardiac Tamponade
Type of reverberation artifact caused by bouncing of sound waves inside of an fluid-filled alveolus that is surrounded by air-filled alveoli
Indicates increased density, not just fluid
Diffuse: CHF, interstitial lung disease, ARDS
Focal: pna, atelectasis, contusion
B lines 
Caused by sound waves bouncing between skin and pleura
Looks like horizontal lines in thorax
Indicates air-filled lung (i.e. normal)
Can occur elsewhere such as in pneumoperitoneum
A lines
Hyperdynamic EF
Enlarged RV
D-shaped LV (instead of circle)
Paradoxical IVS bowing towards LV in systole
Signs of right heart strain 
Abnormal blood flow
Enlarged
Large ovarian cyst
Free fluid
Distended Fallopian tube
Signs of Ovarian torsion
15%
Percentage of ovarian torsion with normal flow 
Yolk sac inside of gestational sac
Fetal pole (signet ring)
Fetal heart beat
IUP requirements 
Appears @ 5-6 weeks GA
bHCG > 1,500 to 2,000
See at 5 weeks transvaginally, 6-7 weeks transabdominally
Yolk sac 
Always runs parallel to and ANTERIOR to the portal vein
Portal vein is the large, hyperechoic structure that often runs parallel and on top of the IVC
Lacks color flow
How to locate the CBD? 
-“bulls eye”
-diameter > 6 mm
-non-compressible (stays a circle)
-blind end
-tubular
-no peristalsis
-tender with compression
-peri-appendiceal fat
-may see poop appendicolith (will have shadowing!)
Appendicitis criteria
Enhanced mesenteric fat
Mesenteric lymphadenopathy
Peri-appendiceal free fluid
Hyperemia on color or power Doppler
Secondary signs of appendicitis 
Caused by consolidation in lung
If with air bronchograms:
-dynamic with respiration = pneumonia
-not dynamic (i.e. static) = atelectasis
-pneumonia CAN have static bronchograms too
Hepatization