Jay Raynald Almojuela

[Jay Raynald Almojuela @jay_raynald]

PHARMACIST LICENSURE EXAMINATION (PhLE) - Table of Specification (TOS)
https://t.co/3LlT2187qe

[CardiovascularCorner @TrackYourHeart]

ECG From Scratch #18: The Hexaxial System

You now know all 6 limb leads.

But there’s a simple way to put them all together and understand where each lead is looking from.

That is the hexaxial reference system.
From triangle to hexaxial system

Einthoven’s triangle shows the orientation of: I, II, III

The triaxial diagram shows:
aVR, aVL, aVF

Combine them, and all 6 axes intersect at a common central point.

This creates the hexaxial (six-axis) reference system.

It is one of the most important diagrams for understanding the QRS electrical axis.

A useful shortcut
Because some leads look at the heart from similar directions, their ECG patterns often resemble each other:

Lead I ≈ aVL

Their positive poles point in broadly similar directions.

Lead II ≈ opposite of aVR

Their positive poles point in opposite directions.

Therefore, the ECG pattern in aVR is usually approximately the reverse of the pattern in Lead II.

For example:

Lead II: qR
aVR: rS

And what about III and aVF?

Lead III ≈ aVF

Their patterns often resemble each other, although this relationship is not absolute.

The key idea

Don't try to memorize six separate ECG patterns.

Instead, start thinking of the limb leads as different viewpoints of the same electrical activity.

I ↔ aVL
II ↔ aVR (opposite)
III ↔ aVF

Once you understand these relationships, the hexaxial system becomes much easier to use when determining cardiac electrical axis.

[DrNadaSalma⚕ @drNadaSalma]

✅👏🏻😍👍🏻
Very useful figure of Drugs used in the management of chronic renal insufficiency

[Oren Gottfried, MD @OGdukeneurosurg]

IVC

[DrNadaSalma⚕ @drNadaSalma]

🟥 Medications contraindicated in G6PD deficiency

[Hira Ali Cardiactech🫀🩺 @HiraaliCardio]

Normal Cardiac Chamber Pressures

[Manual Of Medicine @ManualOMedicine]

First-line Antituberculosis Drugs

#medtwitter #foamed #meded

[Abdulhamid @abdulhamid_199]

ورقة تلخص لك
الادوية الآمنة في فترة الحمل

جدا مفيدة

[doctor insta @doctorinstaha]

Thyroid Function Tests (TFTs)

📚 For Medical Students & Doctors

#Thyroid #TFT #TSH #FreeT4 #FreeT3 #Endocrinology #Medicine #MedicalEducation #DoctorInsta

[Abdulhamid @abdulhamid_199]

مستحيل تخصصك طبي
وما مر عليك ال Incubation periods

المشكلة في كل مرة تحفظها تنساها
جبت لك ملخص حلو

يختصر لك عدد الايام لكل مرض

[doctor insta @doctorinstaha]

Common Drugs Equivalence/ Conversion Doses.

#Pharmacology #ClinicalPharmacology #MedicalPharmacology #PharmacologyNotes #PharmacologyStudy #PharmacologyStudent #DrugTherapy #Medications #DrugSafety #PharmacologyEducation #MedicalEducation #MedicalStudents #Doctors #Medicine #MedTwitter #DoctorInsta #ClinicalMedicine

[Abdulhamid @abdulhamid_199]

هذه الصورة تلخص لك
اغلب ال signs اللي مشهورة بكل مرض ممكن يواجهك

احفظها عندك جدا مفيدة
ممكن تجيك OSCE

[𝒂𝒃𝒐𝒖𝒕 𝒑𝒉𝒂𝒓𝒎𝒂𝒄𝒚💊 @aboutpharmac]

statins Half-life Comparison✅

[carren 🧚‍♀️ @carrenstudies]

High yield!

Mnemonic: MR. ASS, MS. ARD.

Systolic:
- Mitral regurgutation = Holosystolic murmur.
- Aortic stenosis = crescendo-decrescendo systolic.

Diastolic:
- Mitral stenosis = diastolic opening snap.
- Aortic regurgitation = early diastolic decrescendo murmur.

#studytwt

[Oren Gottfried, MD @OGdukeneurosurg]

Common bacteria differentiation

[Nurse Sarah (RegisteredNurseRN.com) @NursesRN]

4 Things You MUST-KNOW about Opioids on Pharmacology Exams

1. Check respiratory rate, blood pressure, & level of consciousness
-↓ RR, ↓ BP, ↓ LOC, & pinpoint pupils = TOO MUCH opioid

2. Opioid toxicity = give antidote (NALOXONE)

3. Assess pt's bowel movements...can cause constipation!
-Stool softeners are helpful to take while taking opioids

4. Know which meds are opioids: Fentanyl (highly potent), Morphine, Tramadol (don't let the name fool you), Oxycodone, Hydromorphone etc.

#nursingschool #nursing #nurse #nclex #pharmacology

[Hira Ali Cardiactech🫀🩺 @HiraaliCardio]

⇒ Normal segment thickens by about 50% during systole moves inward well that's healthy muscle doing its job

⇒ Hypokinesis means the wall still moves
just weaker than it should thickening drops below 30%
motion looks sluggish not absent

⇒ Then there's the segment that doesn't move at all
no thickening no inward motion this is dead or badly ischemic tissue different problem than sluggish muscle

⇒ Dyskinesis is the one that surprises people early on
wall doesn't just fail to move inward it moves outward during systole it bulges instead of contracts

[Hira Ali Cardiactech🫀🩺 @HiraaliCardio]

101 : ECG Basics
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