489 results
Causes of hypophosphatemia - Differential Diagnosis
 • Increased losses: enhanced urinary phosphate excretion
 • Decreased input:
Enhanced endogenous production ... Differential #Diagnosis #endocrinology
Hyperuricemia - Differential Diagnosis Algorithm
Primary - Over-production
     • Increased turnover of nucleotides
Primary
Primary - Over-production ... Secondary - Over-production ... Diagnosis #Algorithm #endocrinology
Breast Discharge - Differential Diagnosis Algorithm
High Prolactin + Normal TSH
 • Microprolactinoma
 • Steroid Hormone Intake
Lesion Autonomous Production ... Diagnosis #Algorithm #Endocrinology
Pathophysiology of Diabetic Ketoacidosis (DKA) and Hyperglycemic Hyperosmolar Syndrome (HHS)
Absolute Insulin deficit:
 - Type I DM:
- inadequate production ... pathophysiology #comparison #endocrinology
Menstrual Cycle Physiology: The Hypothalamic-Pituitary-Ovarian Axis
Estrogen, when released:
 • Negatively feeds back on the hypothalamus and
Decreased FSH production ... to Increased LH production ... HypothalamicPituitary #endocrinology
Menstrual Cycle Physiology: Ovarian Cycle – Ovulation Explained

Around Day 14, estrogen exerts sudden +++ positive feedback
-> surge in LH production ... Increased fluid production ... pathophysiology #Ovulation #endocrinology
Primary Hyperthyroidism - Pathogenesis and Clinical Findings

Note: Although rare, gestational diseases can lead to thyrotoxicosis due
to excess TSH production ... Hyperthyroidism #endocrinology
Feedback Loop: Prolactin (PRL)
 • PRL levels exhibit diurnal, menstrual, and age-related variation
 • TRH has
Ducts -> Milk production ... #FeedbackLoop #endocrinology
Menstrual Cycle Physiology: Ovarian Cycle – Follicular Phase Explained
Early Follicular Phase (Days 0-5)
 • Granulosa cells
that 1) Incr FSH production ... cell androgen production ... would reduce FSH production ... not stop, FSH production ... FollicularPhase #endocrinology
Thyroid Function Pathway 

Hypothyroidism is a very common condition! Here's a repost of the pathway that
stimulate more T4/T3 production ... Pathophysiology #Endocrinology