Initial and Ongoing Patient Evaluation: Physical Exam, Mentation, TPR, and Documentation

Patient evaluation is the foundation of nursing care. Every hospitalized patient receives a complete physical exam at admission and ongoing evaluations at intervals based on stability. The credentialed technician is the eyes and ears of the veterinary team between veterinarian examinations; trends in temperature, pulse, respiration, mentation, and physical findings often reveal deterioration hours before it becomes obvious. The VTNE tests the sequence of the physical exam, the normal ranges of vital signs, the mentation scoring system, and the documentation practices that make trends visible.

The Head-to-Tail Physical Exam

Perform the initial physical exam systematically, head to tail, so no region is missed. The standard sequence:

1. Observation before touching — note mentation, posture, gait, respiratory effort and pattern, body condition score, and any visible wounds or masses from across the room.
2. Head and oral cavity — eyes (pupillary light reflex, scleral injection, ocular discharge), nares (discharge, patency), ears (discharge, odor, erythema), oral mucous membranes (color, CRT, moisture, petechiae), dentition, capillary refill.
3. Lymph nodes — mandibular, prescapular, axillary, inguinal, popliteal; palpate for size, symmetry, mobility.
4. Cardiothoracic — auscultate heart (rate, rhythm, murmurs) and lungs (normal bronchovesicular sounds, crackles, wheezes, absent sounds) on both sides; palpate femoral pulses for quality (strong, weak, bounding, thready).
5. Abdomen — palpate for pain, masses, organomegaly, fluid wave, distension; auscultate for borborygmi.
6. Integument — skin turgor for hydration, alopecia, ectoparasites, wounds, masses; evaluate hydration by skin tent and mucous membrane moisture.
7. Musculoskeletal — palpate limbs for swelling, pain, crepitus; assess ambulation if mobile.
8. Urogenital — vulvar or preputial discharge, mammary glands, perineal soiling.
9. Neurologic — mentation, postural reactions, spinal palpation for pain, cranial nerves if indicated.
10. Rectal temperature — last, to avoid raising the patient's stress level prematurely.

Mentation Scoring

Mentation describes the patient's level of consciousness and responsiveness. The standardized scoring system used in veterinary nursing, from best to worst:

• BAR — Bright, Alert, Responsive — normal; patient is interested in surroundings, responds appropriately to stimuli, and is fully conscious.
• QAR — Quiet, Alert, Responsive — subdued but still aware; responds to stimuli normally but is less active. Common with illness, post-anesthesia, pain, or simply being in the hospital.
• Depressed — subdued, less responsive to stimuli; may lie down more than usual but is still arousable and aware. Indicates systemic illness or pain.
• Obtunded — reduced response to stimuli; patient must be called or gently shaken to respond. Indicates moderate neurologic or systemic compromise.
• Stuporous — responds only to noxious stimuli (pain); not responsive to voice or touch. Indicates serious neurologic compromise.
• Comatose — no response to any stimulus, including noxious; corneal and pupillary reflexes may be absent. Indicates severe CNS depression; prognosis guarded.

Progression from BAR toward coma is a red flag that requires immediate notification of the veterinarian. Always record mentation with a single standardized term, not a description, so trends are visible across shifts.

TPR Measurement and Normal Ranges

Temperature, pulse, and respiration (TPR) are the core vital signs measured at every evaluation. Use the table below as a reference; these are the values tested on the VTNE.

Panting is not a reliable respiratory rate — count the underlying respiratory effort by observing chest movement during brief pauses in panting. Cats may pant from stress or pain, so a panting cat in the hospital warrants investigation. Pulse deficits (heart rate greater than pulse rate) indicate arrhythmia and warrant ECG (see section 9.3).

Mucous Membrane Color and Capillary Refill Time

Mucous membrane (MM) color and capillary refill time (CRT) provide rapid perfusion assessment. Normal MM is pink and moist. CRT is measured by blanching the mucosa above the canine tooth with a finger and timing the return of color; normal is 1 to 2 seconds.

Abnormal MM findings and their significance:

• Pale — anemia, vasoconstriction (shock, hypothermia), poor perfusion.
• Cyanotic (blue) — hypoxemia, respiratory compromise, congenital right-to-left shunt.
• Brick red / injected — sepsis, hyperdynamic shock, carbon monoxide toxicity.
• Icteric (yellow) — hepatic disease, hemolysis, biliary obstruction.
• Tacky / dry — dehydration (typically 6 percent or greater), xerostomia.
• Petechiae / ecchymoses — thrombocytopenia, DIC, rodenticide toxicity.

CRT interpretation:

• CRT over 2 seconds — poor perfusion (dehydration, shock, hypothermia, cardiac disease). Notify veterinarian.
• CRT under 1 second — hyperdynamic shock (early sepsis), vasodilation.
• CRT absent — severe vasoconstriction, cardiac arrest, agonal patient.

Documentation and the SOAP Format

Findings must be documented in the medical record at admission and at every re-evaluation. Most clinics use the SOAP format for medical records:

• S — Subjective — signalment, presenting complaint, history, observations from client and technician (e.g., "dog lethargic, not eating since yesterday per owner").
• O — Objective — measurable findings: TPR, weight, MM/CRT, physical exam findings, lab values, imaging results. TPR and weight are recorded at every visit and every nursing assessment.
• A — Assessment — veterinarian's interpretation; the problem list, differentials, and diagnosis. Technicians may record nursing observations but the assessment is the veterinarian's.
• P — Plan — treatments, diagnostics, medications, diet, follow-up. Technicians document that treatments were administered, with time and initials.

Legally, if it was not documented, it was not done. Each entry includes date, time, technician initials, and the patient's response to treatment. Use specific terms ("BAR, eating 75 percent of meal, urinated 150 mL") rather than vague ones ("doing well"). Avoid white-out; errors are corrected with a single line through and initials.

Cadence of Ongoing Evaluation

The frequency of ongoing evaluation depends on patient stability:

Trends matter more than single values. A temperature that creeps from 99.0 to 98.4 to 97.6 F over three measurements is more concerning than one isolated 98.4 F reading because it shows deterioration. Record each measurement in the same location (chart, flowsheet, or electronic record) so trends are visible at a glance.

When to Escalate

The credentialed technician must escalate findings that indicate deterioration or that meet predefined alert thresholds. Notify the veterinarian immediately for:

• Mentation drop of one or more categories (e.g., BAR to QAR is notable; QAR to obtunded is urgent).
• Heart rate outside the normal range (dog under 60 or over 140, cat under 160 or over 240) or new arrhythmia (pulse deficit, irregular rhythm).
• Respiratory rate over 40, increased effort, cyanotic mucous membranes, or open-mouth breathing in cats.
• Temperature under 99 F or over 103 F.
• CRT over 2 seconds, pale MM, weak pulses.
• New vomiting, diarrhea, abdominal distension, or apparent pain.
• Bleeding from a surgical site or catheter.
• Seizure activity or any new neurologic sign.

The technician's role is to observe, document, and escalate — not to diagnose or independently adjust treatments. Clear, trended documentation is what makes nursing care visible to the rest of the team and forms the legal record of the patient's hospitalization.