Medlab Relayed @MedlabRelayed
Medical Laboratory Science made simple 🧪 Daily lab tips, quizzes & study help for MLS students and scientists. #MedLabRelayed linkedin.com/in/bethrand-nn… Nigeria Joined August 2025-
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Quiz: Which sample is best for a routine urine test? 🌙 Evening 🌅 First morning 🕛 Any time. Answer drops tomorrow! 🔬 #MedLab #MLS
@EZEKIELOZUMBA1 A. Neostigmine. It's a carbamate ester that reversibly inhibits cholinesterase. Bethanechol is also a carbamate ester, so if the question allows more than one answer, it's A and D. Atropine and pilocarpine aren't carbamates.
@TrackYourHeart A) Yes. Sudden cardiac arrest can happen in fit young athletes, often from undiagnosed heart conditions (e.g. hypertrophic cardiomyopathy, arrhythmias). Lab angle: ECG, echo and electrolytes (K, Mg) are part of the workup. 🔬 #MLS #Cardiology
@Dr_Mohammedolog A) Rheumatoid arthritis. Methotrexate is a first-line DMARD, taken WEEKLY (not daily), with folic acid to reduce side effects. Lab angle: FBC, LFTs and creatinine are monitored regularly on treatment. 🔬 #MLS #Pharmacology
@EZEKIELOZUMBA1 A buffer keeps the pH stable, which protects the drug's stability, solubility and patient comfort. Lab angle: pH meters are calibrated with standard buffers before use. 🔬 #MLS #Pharmacology
@MoarSahitoPTI Quetiapine and orthostatic hypotension: it blocks alpha-1 adrenergic receptors, which causes vasodilation, so BP drops when the patient stands up. Blocking H1 receptors adds to the sedation.
@EZEKIELOZUMBA1 B) Ureter. A muscular tube that moves urine from kidney to bladder by peristalsis. The urethra drains the bladder. Lab angle: midstream urine is collected for culture to avoid contamination from the urethra. 🔬 #MLS #Anatomy
@EZEKIELOZUMBA1 A) Isoniazid. It's built on a pyridine ring (isonicotinic acid hydrazide). Lab angle: liver enzymes (ALT/AST) are monitored in TB patients on isoniazid because of hepatotoxicity risk. 🔬 #MLS #Pharmacology
@EZEKIELOZUMBA1 B) Azithromycin. It concentrates inside cells and tissues (very large Vd), so serum levels stay low while tissue levels stay high. That gives it a long half-life and allows short courses.
@Madihealth2026 @DrAyubaD membranous nephropathy (primary cause in adults). FSGS is common in Black patients, and diabetes is the commonest secondary cause. Lab angle: urine protein >3.5 g/day, low albumin, high cholesterol. Anti-PLA2R helps in membranous. 🔬 #MLS #ChemPath
@farhadparv27723 b) Lichen planus and d) Psoriasis. Koebner phenomenon = new lesions appearing at sites of skin trauma. Also seen in vitiligo and warts. Lab angle: biopsy shows parakeratosis in psoriasis and a band-like lymphocytic infiltrate in lichen planus. 🔬 #MLS
@MoarSahitoPTI Choose bactericidal when host defences can't help: endocarditis, meningitis, sepsis, neutropenia, osteomyelitis. Bacteriostatic works when immunity is intact. Lab angle: MBC vs MIC (MBC/MIC ≤4 = cidal). 🔬 #MLS #Microbiology
@girls_page_yt C) Beta-carotene. It's a carotenoid that the body converts to vitamin A. Lab angle: eating too much can turn the skin yellow-orange (carotenemia), but the sclera stays white, and serum bilirubin helps tell it apart from jaundice. 🔬 #MLS #ChemPath
@girls_page_yt A) Fibroblasts. They make collagen and other matrix proteins, and they're key in wound healing. Lab angle: on an H&E slide they're the spindle-shaped cells in the connective tissue. #MLS #Histology
@girls_page_yt B) Iodine. The thyroid needs it to make T3 and T4, and deficiency causes goitre and hypothyroidism. Lab angle: thyroid function is checked with TSH, free T4 and free T3, and urinary iodine is used to assess iodine status in populations. 🔬 #MLS #ChemPath
@simplify_drugs Mannitol. It's an osmotic diuretic that pulls water out of brain tissue and lowers ICP. Hypertonic saline is another option. Lab angle: serum osmolality, sodium and renal function are monitored closely during treatment. 🔬 #MLS #Pharmacology
@EZEKIELOZUMBA1 D) Thyroid hormones (T3 and T4). They raise basal metabolic rate and are essential for growth and brain development. Newborns are screened for congenital hypothyroidism with TSH/T4 from a heel-prick sample, because early treatment protects brain development. 🔬 #MLS #ChemPath
Mine: I nearly left a sample unlabelled during a busy morning. Lesson: label at the bedside, never "later". 🏷️
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