Hormones on Leukoformula

Fern Phenomenon in Gynecological Smear Microscopy

Fri, 06 Jun 2025 13:00:00 +0300

💕 A 42-year-old woman. The photo shows the characteristic “fern” phenomenon during gynecological smear microscopy. An incidental finding.

🥚 Mucus arborization is a sign of ovulation at peak estrogen levels.

Analyzer Calibration Failure in TSH Testing

Mon, 14 Apr 2025 12:00:01 +0300

Section Error in thyroid hormone testing. Analyzer calibration failure. In one of the polyclinics, several patients received abnormally low TSH values due to a systematic analyzer calibration failure. As a result, they were erroneously diagnosed with thyrotoxicosis.

Saliva Crystallization: The Fern Sign in Ovulation

Thu, 16 Jan 2025 15:00:01 +0300

🔬 Native smear of female saliva. Crystallization in the form of “fern leaves”. 🌿 The fern sign indirectly indicates high estrogen levels, which rise during ovulation. 📈 This can be a useful indicator for determining the favorable time for conception. 🌸

Saliva Fern Sign for Ovulation Detection: Microscopic View

Mon, 23 Oct 2023 19:46:52 +0300

A preparation of saliva dried on a microscope slide during ovulation (photo 1) and on other days of the menstrual cycle (photo 2). Magnification ×40

Diagnosing Pediatric Arterial Hypertension: An Algorithm

Wed, 15 Mar 2023 17:29:00 +0300

🅰Algorithm for the diagnosis of arterial hypertension in children. 👉In children, arterial hypertension most often has a secondary cause. In adults, in 90% of cases, the cause of arterial hypertension is not found, and a diagnosis of primary hypertension (also called essential arterial hypertension) is made. ✅Source: E.V. Prokhorov 2011.

Laboratory Diagnosis of Hyperthyroidism: An Algorithm

Mon, 05 Sep 2022 16:00:02 +0300

Hyperthyroidism and Evaluation of Laboratory Test Results Kishkun A. A. Clinical Laboratory Diagnostics Study Guide. – 2019.