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C. Onyenekwu · SciRah

Researcher profile · Semantic Scholar

C. Onyenekwu

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C. Onyenekwu — researcher profile on SciRah

h-index: 6
Works: 29
Citations: 127

Most-cited papers

Comparison of LDL-cholesterol estimate using the Friedewald formula and the newly proposed de Cordova formula with a directly measured LDL-cholesterol in a healthy South African population
C. Onyenekwu, M. Hoffmann, Francois Smit, T. Matsha +1 more
2014Annals of Clinical Biochemistry33 citations
Semantic Scholar
The impact of repeat-testing of common chemistry analytes at critical concentrations
C. Onyenekwu, Careen L. Hudson, A. Zemlin, R. Erasmus
2014Clinical Chemistry and Laboratory Medicine21 citations
Semantic Scholar
Procalcitonin, C‐reactive protein, and presepsin for the diagnosis of sepsis in adults and children
C. Onyenekwu, Charles I. Okwundu, E. Ochodo
201714 citations Open access
Semantic Scholar
The prevalence of metabolic syndrome in persons with type 2 diabetes at the Lagos University Tteaching Hospital, Lagos, Nigeria.
I. Udenze, E. Azinge, A. Arikawe, E. Egbuagha +3 more
2013West African Journal of Medicine14 citations
Semantic Scholar
Critical values notification: A nationwide survey of practices among clinical laboratories across Nigeria
L. Imoh, I. Mohammed, I. Nnakenyi, E. Egbuagha +2 more
2023African Journal of Laboratory Medicine7 citations Open access
Semantic Scholar
Relationship between plasma osteocalcin, glycaemic control and components of metabolic syndrome in adult Nigerians with type 2 diabetes mellitus
C. Onyenekwu, E. Azinge, E. Egbuagha, H. Okpara
2016Diabetes & metabolic syndrome7 citations Open access
Semantic Scholar
Strategies to mitigate transfusion-associated red blood cell alloimmunization in sickle cell disease: a retrospective analysis
E. Crowe, C. Onyenekwu, Jordan Ippolito, Xin-Yi Feng +9 more
2025Transfusion6 citations
Semantic Scholar
A Multicenter Evaluation of the Quality Management Practices for Point-of-Care Testing in Nigeria
I. Nnakenyi, C. Onyenekwu, L. Imoh, N. Ntuen +2 more
20175 citations
Semantic Scholar
Prevalence of insulin resistance among patients attending the HIV clinic in a Nigerian tertiary hospital.
Adeyemi O Dada, T. Oshodi, I. Ajie, C. Onyenekwu
2017Diabetes & metabolic syndrome4 citations
Semantic Scholar
High pleural fluid adenosine deaminase levels: a valuable tool for rapid diagnosis of pleural TB in a middle-income country with a high TB/HIV burden.
C. Onyenekwu, A. Zemlin, R. Erasmus
2014South African medical journal = Suid-Afrikaanse tydskrif vir geneeskunde4 citations Open access
Semantic Scholar
Diffuse Leptomeningeal Histiocytic Sarcoma: Histologic and Molecular Findings in an Autopsy Case.
C. Onyenekwu, Ashley M Cunningham, Kala F. Schilter, Honey V. Reddi +1 more
2022Journal of Neuropathology and Experimental Neurology3 citations Open access
Semantic Scholar
Multicenter Survey of Physicians’ Perception of Interpretative Commenting and Reflective Testing in Nigeria
L. Imoh, C. Onyenekwu, K. Inaku, A. O. Abu +3 more
2021EJIFCC2 citations
Semantic Scholar
Exogenous Lipoid Pneumonia Presenting as an Enlarging Lung Nodule in a Patient with a Long-standing Usage of Petroleum Jelly
C. Onyenekwu, Y. Sheinin
20202 citations
Semantic Scholar
Milky Plasma, Murky Diagnosis: Urgent Plasma Exchange for Severe Hypertriglyceridemia‐Induced Hyperviscosity Without Pancreatitis, but With Myocardial Infarction
Catherine Bodnar, Christina M Hughey, Ariel Bodker, C. Onyenekwu
2026Journal of clinical apheresis1 citations Open access
Semantic Scholar
A case report and systematic literature review: insulin-induced type III hypersensitivity reaction
Rebecca R. Meredith, Pooja Patel, Polly Huang, C. Onyenekwu +3 more
2024Frontiers in Allergy1 citations Open access
Semantic Scholar
Assessment of Quality of Frozen Section Services at a Large Academic Hospital Before and After Relocation.
C. Onyenekwu, Rebecca C. Czaja, Rashda Norui, Bryan C. Hunt +2 more
2022American Journal of Clinical Pathology1 citations
Semantic Scholar
Epithelioid angiosarcoma of the small intestine presenting with intractable gastrointestinal bleeding: An uncommon tumor with diagnostic challenge and poor prognosis
C. Onyenekwu, Reena Singh, J. A. Miller, M. Mostafa
2021Case Reports in Clinical Pathology1 citations Open access
Semantic Scholar
Relationship between prostate specific antigen and body mass index among men in Lagos, South West Nigeria
A. Dada, O. O. Soriyan, H. Okpara, C. Onyenekwu +1 more
20181 citations Open access
Semantic Scholar
ABO discrepancies revealing rare weak A subgroups: a 2-case series.
Ande Marchini, C. Onyenekwu, P. Ruegsegger, C. Fuja +2 more
2026Laboratoriums Medizin0 citations
Semantic Scholar
Temperature Safeguards and Peri‐Procedural Strategies for Stem Cell Collection in Cold Agglutinin Disease: A Case Report and Literature Review
S. Bellegarde, C. Scott, R. Sabol, T. Eunson +2 more
2026Journal of clinical apheresis0 citations Open access
Semantic Scholar
A global survey of blood transfusion practices for patients with sickle cell disease
Jeremy W. Jacobs, A. Al-Riyami, J. Callum, M. Delaney +15 more
2026Transfusion0 citations Open access
Semantic Scholar
Cryoprecipitate utilisation, shortages and institutional policies in the United States: A survey of practices and policies
C. Onyenekwu, M. Ratiani, J. Wade, Angela Treml
2026Transfusion Medicine0 citations Open access
Semantic Scholar
Variation in Chronic Automated Red Cell Exchange Practices for Sickle Cell Disease: Insights Into Isovolemic Hemodilution Use
Jennifer M. Jones, F. Aldarweesh, N. Aqui, A. Bobr +24 more
2026Journal of clinical apheresis0 citations Open access
Semantic Scholar
Massive transfusion practices and low-titer group O whole blood utilization before and after implementation in a low-volume level I trauma center: A six-year review.
C. Onyenekwu, Debra M. Lehman, Brittany Trower, Paula Woywod +1 more
2026Transfusion0 citations Open access
Semantic Scholar
P‐TS‐22 | Cryoprecipitate Usage, Policy, and Practices Among Blood Banks in the United States
C. Onyenekwu, M. Ratiani, J. Wade, A. Treml
2023Transfusion0 citations
Semantic Scholar
Urinary bladder paraganglioma metastatic to the lung in a patient with SDHB gene mutation: A case report
C. Onyenekwu, K. Iczkowski, Y. Sheinin
20210 citations Open access
Semantic Scholar
Performance of Four Common Tissue Preservatives for Immunohistochemical Testing of Cytology Specimens; Preliminary Findings from an Immunohistochemical Stains Validation Project
C. Onyenekwu, M. Ratiani, Rashda Norui, V. Shponka +1 more
2021Journal of the American Society of Cytopathology0 citations
Semantic Scholar
Association of High-Risk HPV Strains other than 16 And 18 and Diagnosis of Atypical Glandular Cells: A 5-Year Study with Follow-Up
M. Ratiani, C. Onyenekwu, Abhinav Grover, M. Moh +1 more
2021Journal of the American Society of Cytopathology0 citations
Semantic Scholar
Paraganglioma of the Urinary Bladder Metastatic to the Lung in a Patient with SDHB Gene Mutation: A Case Report
C. Onyenekwu, K. Iczkowski, Y. Sheinin
20200 citations
Semantic Scholar

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