14 results
Feedback Loop: Prolactin (PRL)
 • PRL levels exhibit diurnal, menstrual, and age-related variation
 • TRH has
Feedback Loop: Prolactin ... Prolactin #PRL #FeedbackLoop
Cushing Syndrome - Likelihood Ratios of Physical Exam Findings
Moon facies LR +1.6
Central obesity LR +3.0
Generalized obesity
Central obesity LR ... Thin skinfold LR ... 115.6 Plethora LR ... +NS Ecchymoses LR ... #Ratios #LRs #PhysicalExam
COPD Physical Exam Likelihood Ratios
Barrel Chest - LR 1.5
Pursed Lip Breathing - LR 2.7
Reduced breath sounds
Barrel Chest - LR ... Lip Breathing - LR ... breath sounds - LR ... cardiac impulse - LR ... SatyaPatelMD #COPD #PhysicalExam
Feedback Loop: Growth Hormone (GH)
Growth Hormone:
 • Liver -> GHR activates JAK-STAT pathway -> Incr IGF1
Feedback Loop: Growth ... GrowthHormone #GH #FeedbackLoop
Considerations for Crystalloids - 0.9% NS vs LR vs Plasma-Lyte
 - Causes hyperkalemia?
 - Safe to
Crystalloids - 0.9% NS vs LR ... per @kidney_boy feedback ... indications #comparison #LR
Physical Exam findings in Lower Extremity DVT - Likelihood Ratios
 - Asymmetric calf swelling, ≥2 cm
cm difference - LR ... venous dilation - LR ... of entire leg - LR ... skin warmth - LR ... Likelihood #Ratios #PhysicalExam
Thyroid Goiter on Physical Exam - Likelihood Ratios by Finding
 • No goiter by palpation or
or inspection - LR ... normal position - LR ... Thyroid #Goiter #PhysicalExam ... #diagnosis #LR
Physical Exam Findings Predicting Thyroid Carcinoma - Likelihood Ratios
If goiter is present:
 • Cervical adenopathy -
Cervical adenopathy - LR ... surrounding tissues - LR ... cord paralysis - LR ... cord paralysis - LR ... Thyroid #Carcinoma #PhysicalExam
Acute Heart Failure Exacerbation - Diagnostic Likelihood Ratios
+LR > 3.5:
 • Overall judgement of ED physician
Likelihood Ratios +LR ... S3 • AFib -LR ... #heartfailure #physicalexam
Lactated Ringers (LR) vs Normal Saline (NS) - Comparison

Composition of LR:
 • Sodium 130 mEq/L
 •
Lactated Ringers (LR ... Composition of LR ... Lactated Ringers (LR ... lactic acid • LR ... Tubuloglomerular feedback