Arcline

How to Read Your TRT Bloodwork: A Complete Guide

Mon, 13 Apr 2026 00:00:00 +0000

Getting your first lab panel back after starting testosterone replacement therapy can feel like reading a foreign language. Numbers, abbreviations, reference ranges, arrows pointing up or down — it is a lot to absorb, especially when the results directly affect how you feel day to day. Having your TRT bloodwork results explained in plain language is one of the most useful things you can do for yourself as a patient, because it turns a confusing printout into a tool you and your clinician can actually use together.

TRT Hematocrit Management: When to Worry, When to Donate

Mon, 06 Apr 2026 00:00:00 +0000

If you’ve been on testosterone replacement therapy for more than a few months, you’ve probably had a conversation with your clinician about hematocrit. Maybe your last lab report came back with that number flagged in red, or maybe your doctor mentioned the phrase “therapeutic phlebotomy” and you left the appointment wondering what that actually means. TRT hematocrit high readings are one of the most common lab findings men on therapy encounter, and understanding what the number represents, when it warrants attention, and what options exist can make the difference between a manageable side effect and an ongoing source of anxiety.

Sensitive Estradiol Test vs Standard: Why the Assay Matters on TRT

Mon, 30 Mar 2026 00:00:00 +0000

If you’re on testosterone replacement therapy and paying attention to your labs, you’ve probably noticed that estradiol (E2) can be measured in more than one way. The difference between a standard estradiol immunoassay and a sensitive estradiol test on TRT is not a minor technical footnote — it can meaningfully change the number on your lab report and how you and your clinician interpret it. Understanding why the assay matters is one of the most useful things a TRT patient can learn, because decisions about aromatase inhibitors, dose adjustments, and symptom interpretation often hinge on this single value.

When to Get Bloodwork on TRT: Trough vs Peak Timing

Mon, 23 Mar 2026 00:00:00 +0000

You got your bloodwork back. Total T is 780 ng/dL. Is that good, bad, or indifferent?

The honest answer is: it depends almost entirely on when you drew the blood. A result of 780 ng/dL at trough — just before your next injection — is very different from 780 ng/dL measured 36 hours after your last dose. One might indicate your protocol is working well. The other might mean your levels are crashing before your next pin. The number alone tells you almost nothing.

Features

Mon, 01 Jan 0001 00:00:00 +0000

Privacy Policy

Mon, 01 Jan 0001 00:00:00 +0000

Last updated: April 19, 2026

Arcline is built on a simple principle: your health data belongs to you. This policy explains what we collect, what we don’t, and how we protect your privacy.

What Data Stays on Your Device

All health data you enter into Arcline — bloodwork results, injection logs, symptom entries, protocol details — is stored exclusively on your iPhone using Apple’s SwiftData framework. This data is never transmitted to Arcline’s servers, because Arcline has no servers. It does not leave your device.

Support

Mon, 01 Jan 0001 00:00:00 +0000

Get Help

Have a question or issue with Arcline? Email us at support@arcline.health. We typically respond within one business day.

Frequently Asked Questions

How do I log a bloodwork entry?

Tap the Bloodwork tab, then tap the + button in the top right. Enter your biomarker values and — importantly — the number of hours since your last injection. This timing context is what makes your results comparable across draws.

Why does Arcline ask for hours since injection?

Testosterone levels vary significantly depending on when in your injection cycle you get your blood drawn. Getting labs at trough (just before your next injection) vs. at peak (24–48 hours after injection) can show a difference of hundreds of ng/dL. Arcline captures this so you can compare apples to apples across blood draws.

Terms of Service

Mon, 01 Jan 0001 00:00:00 +0000

Last updated: April 16, 2026

Please read these terms carefully before using Arcline.

Acceptance of Terms

By downloading or using Arcline, you agree to be bound by these Terms of Service. If you do not agree, do not use the app.

Not Medical Advice

Arcline is a personal health tracking tool. It is not a medical device, and it does not provide medical advice, diagnosis, or treatment recommendations.

Nothing in Arcline — including data visualizations, trend analyses, safety alerts, or any content generated by the app — constitutes medical advice. All information is provided for personal tracking and informational purposes only.