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Total Diameter of Penile Densities (Erythrocyte Count or Red Blood Cell-Related Measurement)

Published: August 9, 2026Updated: August 16, 2026

This test may refer to an evaluation of red blood cell characteristics or a specialized measurement related to penile density (a rare or research-specific term). For standard blood tests, your provider will clarify the exact purpose.

Quick summary

["This test is not a standard blood panel and may not apply to routine care; confirm with your healthcare team."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
111899-1
Short code
Tail diameter PD Endscpy
Synonyms
Tail diameter PD Endscpy
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
endoscopy
Specimen volume
5 mL
Stability
Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
Hemolysis max
500
Lipemia max
1000
Icterus max
500
TAT
4–24 hours
Order
routine

What This Test Measures

The term ‘penile densities’ in this context appears to be a non-standard or research-specific phrase. If referring to red blood cells, it might involve a measurement of cell distribution or morphology. For example, it could relate to erythrocyte sedimentation rate (ESR) or similar indirect assessments of red blood cell properties. However, this is not a widely recognized clinical test.

Why It Might Be Ordered

Since this test is not a standard diagnostic tool, it may be used in specialized research, advanced imaging studies, or niche clinical scenarios (e.g., vascular or penile health studies). If ordered, your provider will explain its relevance to your condition. For general bloodwork, tests like complete blood count (CBC) or specific red blood cell indices are more commonly used.

What to Expect Before the Test

If this test is unrelated to standard bloodwork, it may involve a different procedure (e.g., imaging, ultrasound, or specialized imaging of penile structures). For red blood cell-related tests, standard blood drawing procedures apply: avoid alcohol or strenuous activity 24 hours beforehand.

What to Expect During the Test

The procedure depends on the test’s purpose. If it involves blood, a healthcare provider will insert a needle into a vein, draw a small sample, and remove the needle. If it involves imaging (e.g., ultrasound), you may lie down while a technician uses gel and a probe to capture images.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Frequently asked questions

Why might my doctor order this test?
Your doctor may have requested this test for research, advanced imaging studies, or to assess rare conditions not covered by standard blood tests. If this is unclear, ask your provider for details about why it was ordered.
What does a result of this test mean?
Since this test is not standard, results may not have direct clinical interpretation. Your provider will explain how the result relates to your health, if applicable. For example, if it involves red blood cells, they may discuss findings in the context of CBC or other blood tests.
Do I need to prepare differently for this test?
Preparation depends on the test type. For blood-related tests, avoid alcohol or heavy meals 24 hours before. If it involves imaging, follow any specific instructions provided by the technician or radiologist (e.g., fasting, avoiding certain medications). Always confirm with your provider or the testing facility.
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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy