Clinical Chemistry II Professional Track

Course Description

Clinical Chemistry II Professional Track continues where Clinical Chemistry I left off, discussing kidney function, electrolytes, blood gases, acid-base balance, mineral metabolism, enzyme measurement, liver function studies, and pancreatic function assessment. It also includes the more esoteric tests involved in testing endocrine function, therapeutic drug monitoring, toxicology, tumor markers, and testing during pregnancy. Methodology is primarily immunoassay, potentiometry, and spectrophotometry. Reading and disseminating research in the discipline is emphasized in the format of a journal club. Permission is required.

Within the SCNS taxonomy, MLS is the Medical Laboratory Sciences prefix. The University of West Florida publishes this at 3 semester hours through the Department of Medical Laboratory Sciences, College of Health.

⚠ The SCNS title for this number is "Clinical Chemistry II"; UWF publishes it as "Clinical Chemistry II Professional Track." That difference runs across the whole Professional Track and is described below.

⚠ This course is not in the statewide priority inventory and had no guide until now; it is documented here to complete the Professional Track. ⚠⚠ It is also the one Professional Track course whose description does NOT mention virtual laboratory activities — it names a journal club instead. That is consistent with the subject: this half of clinical chemistry is dominated by interpretation and by method selection rather than by bench technique, and reading the literature is how practitioners keep up with endocrine and toxicology methods that change quickly.

⚠⚠⚠ What the Professional Track is — read this before enrolling

• UWF runs two parallel routes through the MLS subject matter, and this course is in the second one. The standard track is split lecture-plus-laboratory courses (for example MLS4550 with MLS4550L) with general-science prerequisites, followed by hospital clinical rotations (MLS4820L–MLS4825L). The Professional Track is integrated C-suffix courses prerequisite on MLS3194 and MLS3621, and it has no rotation courses at all.
• ⚠⚠ Every Professional Track course states that "students will perform virtual laboratory activities and interpret laboratory data." There is no bench component. That is a deliberate design, not an omission.
• ⚠⚠⚠ The reason is stated in the track's own capstone. MLS4704 Clinical Management Portfolio requires the student to "provide evidence of adequate training or work experience in Hematology, Clinical Chemistry, Microbiology, and Blood Bank equivalent to an MLS clinical internship" and to present it as a portfolio. The portfolio stands in place of the hospital rotations.
• Read together, the evidence points to a degree-completion pathway for people already working in clinical laboratories — a certified technician or experienced laboratorian completing a bachelor's degree, whose bench competence already exists and is evidenced rather than taught. ⚠ That is an inference from the catalog text, not a quotation from it, and it is stated here because the practical consequences are large.
• ⚠⚠⚠ If you have no clinical laboratory work experience, this is very unlikely to be your route. The virtual laboratories will not build bench skill, and the portfolio requirement cannot be satisfied by someone with no experience to document. Confirm with the Department of Medical Laboratory Sciences which track you belong in before enrolling in anything.
• ⚠⚠ Certification eligibility is the question to settle first. ASCP Board of Certification routes differ by education and experience, and Florida requires state licensure on top of certification. Ask the department, in writing, which certification route this track prepares you for and what experience it assumes you already hold.

⚠⚠ The C suffix here does not mean what it means elsewhere in Florida

• Across Florida a C suffix normally marks an integrated lecture-plus-laboratory version of a course. In this prefix it marks a separate programme track with different prerequisites and a different intended student.
• ⚠ SCNS offers a small set of course-designation options — no suffix, C, L — and every course has to be filed under one of them. A lecture course carrying virtual laboratory activities is closest to C, so that is the slot it gets. The suffix records a filing decision, not the content.
• ⚠⚠ The same caution applies to the L suffix in this prefix, where MLS4820L–MLS4825L are supervised hospital rotations rather than campus laboratories.
• Read the description, not the suffix. This matters when a transfer evaluator or an employer reads a transcript line and assumes the statewide convention applies.

⚠ The contact-hour figure is derived — the University of West Florida publishes none

UWF's catalog publishes a credit value in semester hours, the college and department, prerequisites, co-requisites, fee notices, and a description. It does not publish contact hours, a lecture and laboratory split, or terms of offering for any course. Every contact-hour value in a UWF guide in this repository is therefore derived. The figure here applies the standard lecture convention of 15 contact hours per credit, giving 45 hours for a 3-semester-hour course. ⚠ Note that the laboratory activities in this course are virtual and are carried inside the same enrolment, so no separate laboratory hours are added. Confirm the meeting schedule with the department. No fee notice is published on this entry, which is consistent with a course that uses virtual rather than physical laboratory activities.

Learning Outcomes

Required Outcomes

• Describe renal physiology and the basis of kidney function testing.
• Interpret creatinine, urea, and estimated glomerular filtration rate.
• Interpret markers of kidney injury and chronic kidney disease staging.
• Describe electrolyte physiology and measurement by potentiometry.
• Calculate and interpret the anion gap and osmolal gap.
• Describe acid-base physiology and buffering systems.
• Interpret arterial blood gas results and classify acid-base disorders.
• Recognise compensation and mixed acid-base disturbances.
• Describe mineral metabolism including calcium, phosphate, and magnesium.
• Describe enzyme measurement and its diagnostic applications.
• Describe liver function tests and patterns of hepatic injury.
• Describe pancreatic function assessment including amylase and lipase.
• Describe endocrine feedback axes and their laboratory evaluation.
• Describe thyroid function testing and interpret common patterns.
• Describe adrenal and pituitary testing including dynamic tests.
• Describe therapeutic drug monitoring and the significance of peak and trough.
• Describe toxicology screening and confirmatory testing.
• Describe tumour markers and their appropriate clinical use.
• Describe laboratory testing in pregnancy including maternal screening.
• Critically appraise and present research from the discipline.

Optional Outcomes

• Relate the material to your own laboratory's procedures and platforms.
• Prepare portfolio evidence documenting competence in this discipline.
• Revise against the ASCP Board of Certification content outline for this section.
• Evaluate a recent research paper in the discipline.
• Describe emerging methods likely to affect practice in this area.

Major Topics

Required Topics

• Renal physiology and function testing
• Creatinine, urea, eGFR
• Kidney injury and CKD staging
• Electrolytes and potentiometry
• Anion gap and osmolal gap
• Acid-base physiology
• Blood gas interpretation
• Compensation and mixed disorders
• Mineral metabolism
• Enzyme measurement
• Liver function and injury patterns
• Pancreatic function
• Endocrine feedback axes
• Thyroid function testing
• Adrenal and pituitary testing
• Therapeutic drug monitoring
• Toxicology screening and confirmation
• Tumour markers
• Testing in pregnancy
• Journal club and critical appraisal

Optional Topics

• Local procedures and platform variation
• Portfolio evidence for this discipline
• Certification examination revision
• Current research in the discipline
• Emerging methods

Resources & Tools

• Bishop, Fody and Schoeff — continuing from Clinical Chemistry I.
• KDIGO guidelines (kdigo.org) — free; the basis of how eGFR and CKD staging are reported.
• An acid-base practice tool — free; blood gas interpretation is pattern recognition and fifty worked cases beat re-reading the chapter.
• ASCO tumour marker guidelines — free, and notably restrained about what markers should not be used for.
• A journal access route — Clinical Chemistry and Clinica Chimica Acta through UWF Libraries; the journal club is the assessment, so establish access in week one.
• ASCP Board of Certification content guideline (ascp.org) — free; the examination is the point of the qualification, so revise against the outline from the first week.
• Florida Department of Health clinical laboratory personnel licensure (floridahealth.gov) — free; ⚠ check the requirements against your own route before you are close to graduating.
• ASCLS (ascls.org) — the professional society; membership is inexpensive and worth having while studying.

Career Pathways

• Medical and clinical laboratory technologists and technicians — SOC 29-2011 and 29-2012; a persistent national shortage occupation, and hospital laboratories recruit continuously.
• Florida hospital systems — AdventHealth, Orlando Health, BayCare, Baptist Health, Tampa General, Jackson Health, and in UWF's own region Baptist Health Care and Ascension Sacred Heart in Pensacola.
• Reference and commercial laboratories — Quest Diagnostics and Labcorp both operate substantial Florida facilities.
• Blood centres and transfusion services — OneBlood is the major Florida blood supplier.
• Public health laboratories — the Florida Department of Health Bureau of Public Health Laboratories, which handles outbreak and reportable-disease testing.
• Molecular and genetic testing laboratories — the fastest-growing segment of the field.
• Laboratory management and supervision — SOC 11-9111 adjacent; a normal progression after several years at the bench.
• In vitro diagnostics industry — applications, technical support, and field service roles with instrument and reagent manufacturers, which typically pay more than bench work.
• Pathway to further study — medical school, physician assistant, pathology assistant, and graduate work in molecular biology or public health.
• ⚠ An honest note on the work itself. Clinical laboratory scientists are largely invisible to patients and produce the majority of the objective data on which diagnoses are made. The work is shift-based, includes nights and weekends in hospital settings, and carries real consequence — a transfusion or a critical result acted on incorrectly harms someone.

Special Information

⚠⚠ Florida licenses clinical laboratory personnel — and most states do not

• Florida is one of a small number of states that require a state licence to work as clinical laboratory personnel. Licensure is administered by the Florida Department of Health, and a national certification alone is not sufficient to practise in Florida.
• ⚠ This is the single most important regulatory fact for a Florida MLS student, and it cuts both ways: graduates of a Florida programme are prepared for it, while someone certified in a non-licensure state who moves to Florida must obtain the state licence separately.
• The usual national credential is the ASCP Board of Certification MLS credential, earned by examination after completing a programme accredited by NAACLS.
• ⚠⚠ Programmatic accreditation matters more here than institutional accreditation. Eligibility to sit the certification examination generally depends on graduating from a NAACLS-accredited programme — so confirm a programme's current accreditation status directly with NAACLS before enrolling, and be careful about assuming that transferred coursework preserves eligibility.
• Laboratory testing itself is federally regulated under CLIA, which sets personnel requirements by test complexity — the framework within which both licensure and certification sit.

⚠⚠ "Permission is required" — this course is gated on programme admission

• UWF marks this course Permission is required, and the same phrase appears on nearly every course in the MLS prefix. Meeting the listed prerequisites does not make a student eligible to enrol.
• ⚠ In practice this means admission to the Medical Laboratory Sciences programme. Clinical laboratory science programmes are cohort-based and capacity-limited, because laboratory seats and clinical placements are finite — so admission is competitive and separate from admission to the university.
• ⚠⚠ Apply to the programme early and treat its deadlines as the real constraint. A student who completes every science prerequisite and misses the cohort application waits a full year, because a cohort sequence normally starts once a year — and UWF publishes no terms of offering, so this cannot be confirmed from the catalog.
• Contact the Department of Medical Laboratory Sciences, College of Health, before planning a schedule around these courses.

⚠⚠ The SCNS title and the UWF title differ across the whole track

• This is a systematic naming convention, not a one-off rename. Where SCNS names these courses Clinical X or Advanced X, UWF names them X Professional Track — across every member of the track.
• ⚠ A transfer evaluator matching on title alone will not connect them. "Clinical Hematology" and "Hematology Professional Track" do not look like the same course, and the credit values differ from the standard-track equivalents too.
• Carry a syllabus in either direction, and be explicit that this is a distinct programme route rather than an integrated version of a split pair.

⚠⚠ Virtual laboratory activities — what they do and do not provide

• Virtual laboratories are genuinely good at some things. Interpreting results, applying quality control rules, working through case correlations, and seeing rare findings that a teaching laboratory would never happen to have — all of these work well in software, and a student can repeat a case as often as they like, which a bench cannot offer.
• ⚠⚠ What they cannot provide is psychomotor skill. Pipetting accuracy, reading agglutination strength by eye, streaking for isolation, focusing a microscope on a low-density finding — these are physical skills built only by repetition with real material, and the certification examination and the employer both assume them.
• ⚠ They also cannot provide the conditions. Working accurately under time pressure, with specimens arriving continuously and a clinician on the telephone, is a large part of what a rotation teaches.
• This is why the track pairs virtual activities with a portfolio evidencing real experience — the design assumes the physical skill is already present and does not attempt to teach it.
• ⚠⚠ If you are relying on this track and your bench experience is thin or dated, say so to the department early. It is much easier to arrange supplementary experience before a certification application than after one is refused.

⚠ The standard-track equivalent, for comparison

• The same subject appears in UWF's standard track as MLS4630 Clinical Chemistry II (2 sh) with MLS4630L Clinical Chemistry II Lab (1 sh). The content overlaps substantially; what differs is the laboratory component and the intended student — the standard track has physical laboratory work and leads to hospital rotations, while this course carries virtual activities and assumes documented experience instead.
• ⚠ Credit values differ between the two versions, so a transfer evaluator cannot assume equivalence in either direction.
• Only one route applies to you. Confirm which with the department rather than choosing by what fits the timetable.

⚠⚠ These results cannot be interpreted without the circumstances of collection

• Therapeutic drug monitoring is meaningless without the timing. A trough drawn an hour after a dose is not a trough, and a result without the collection time relative to dosing invites a wrong dose adjustment.
• ⚠⚠ Blood gas specimens are uniquely fragile — air bubbles alter oxygen and pH, delay changes results, and a venous specimen labelled arterial looks like respiratory failure in a well patient.
• ⚠ Many hormones vary with time of day, so a random cortisol is uninterpretable without knowing when it was drawn; dynamic tests are only interpretable if the timed specimens were collected on time.
• Binding proteins confound total hormone measurement, which is why free hormone measurement largely replaced total.

⚠⚠ Tumour markers are the most misused tests in this course

• Most are unsuitable for screening asymptomatic people, because specificity is too low for the prevalence — the same predictive-value arithmetic as serology, ignored more often.
• ⚠ Their validated use is monitoring known disease, where the patient is their own baseline.
• ⚠⚠ Method changes break serial comparison. Values from different platforms are not interchangeable, so monitoring must stay on one method or the trend is an artefact.
• The hook effect gives falsely low results at very high concentration in some immunoassays — the analytical counterpart of the prozone effect.

⚠ Toxicology results carry legal weight

• Screening and confirmation are different tests. Immunoassay screens are sensitive and cross-react; a positive screen is presumptive and requires confirmation, usually by mass spectrometry.
• ⚠⚠ Reporting an unconfirmed screen as a positive drug result can cost someone their job or custody of a child. This is a professional obligation, not a technicality.
• Chain of custody applies to forensic and workplace testing, and clinical results are generally not admissible as forensic ones.

⚠ A probable catalog typo in the prerequisite

• UWF publishes the chemistry branch as "CHM 2210 OR CHM 2022" for this course, while the companion MLS4626C publishes "CHM 2210 OR CHM 2202".
• ⚠ The two courses cover the same chemistry requirement, and 2022 versus 2202 is a plausible digit transposition. It is reported here as published rather than corrected, because guessing which is intended would be worse than stating the discrepancy.
• Confirm the accepted course with an advisor if you are relying on anything other than CHM2210.

⚠⚠ Quality control is the discipline, not a chore attached to it

• A result is worthless without evidence that the method was performing when it was produced. That evidence is quality control, and in clinical laboratory science it is the professional skill rather than an administrative overhead.
• ⚠ Learn Levey-Jennings charts and the Westgard rules properly. They are how a laboratory distinguishes normal analytical variation from a real shift or trend, and they are examined on the ASCP board certification.
• ⚠⚠ The consequence of releasing a result from an out-of-control run is a patient managed on a wrong number. Delta checks, critical value protocols, and result verification exist because that happens and because it harms people.
• Pre-analytical error dominates. Most laboratory errors occur before the specimen reaches the analyser — wrong patient, wrong tube, haemolysis, insufficient volume, wrong order of draw — and the laboratory is frequently blamed for errors that happened at collection.
• Accuracy, precision, sensitivity, specificity and predictive value are used precisely here, not loosely. Predictive value depends on disease prevalence, which is why the same test performs differently in different populations.

⚠⚠ Bloodborne pathogen exposure is a real occupational risk, and the controls are not optional

• Clinical laboratory work involves human blood and body fluids, which are treated as infectious regardless of the patient's known status. That is Standard Precautions, and it is the organising rule of laboratory practice.
• The OSHA Bloodborne Pathogens Standard (29 CFR 1910.1030) is law, not guidance — it requires an exposure control plan, personal protective equipment, engineering controls, and hepatitis B vaccination offered at no cost.
• ⚠⚠ Needlestick and sharps injuries are the highest-risk exposure route. Never recap needles by hand, dispose of sharps at the point of use, and report every exposure immediately — post-exposure prophylaxis is time-critical, and the instinct to say nothing is the dangerous one.
• Aerosol generation is the underestimated route. Uncapping tubes, centrifuge accidents, and pipetting all generate aerosols; a centrifuge that is unbalanced or opened too early is a genuine hazard.
• ⚠ Programmes normally require immunisation records, a health screening, and sometimes a background check and drug screen before clinical placement. Start these early — they take longer than students expect and can delay a placement.
• Chemical hazards sit alongside the biological ones, and both belong in the same safety habit.

Course format and position in the curriculum

• Lecture and case work with virtual laboratory activities, delivered within a single enrolment — there is no separate laboratory course.
• Prerequisite on MLS3194 and MLS3621, which together gate the entire Professional Track.
• ⚠ Permission is required, which in practice means admission to the programme and to this track specifically.
• UWF publishes no contact hours, lecture and laboratory split, or terms of offering for any course, and no fee notice appears on this entry. Confirm the offering pattern with the department.

How Florida course levels affect transfer

The first digit of an SCNS number denotes the year of offering, not transferability. Courses at the 1000 and 2000 levels transfer transparently between Florida public institutions, and 3000 to 4000 is unproblematic since both are upper division. The boundary that actually matters is 2000 to 3000, where lower-division credit generally cannot satisfy an upper-division requirement. ⚠ For clinical laboratory sciences the more important constraint is programmatic rather than numeric: courses are gated on admission to a cohort, sequenced tightly, and tied to NAACLS accreditation and to eligibility for certification — so transferring individual courses between programmes is frequently not possible even where the credit itself articulates.

MLS4631C is 3 semester hours at the University of West Florida. ⚠ It is part of a distinct programme route rather than an integrated version of a split lecture-and-laboratory pair — a distinction that matters whenever this credit is evaluated elsewhere.