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newSchoolWorks.com › VoTechWorks › Health & Personal Services › Veterinary Technology / Vet Assistant › Advanced Veterinary Technology: Clinical Competencies for the AAS-Credentialed Technician › Lesson 2
HLT-VET42-09 · Lesson 2 · 24 clock hours · demo

Advanced Physical Examination and Patient Assessment

Objective. The student will perform a systematic head-to-tail physical examination on a canine and feline patient, accurately recording all parameters and flagging abnormal findings using correct medical terminology.

⚠ Pending professional review

This lesson, its worked examples and its practice questions has not yet been verified by a licensed clinician in the field or by a certification or approval body. It is a study draft and may contain errors. Do not use it to make decisions about any patient or medication. Always follow your instructor, your supervising professional, and current official references and regulations.

VoTechWorks program approval and accreditation are still in progress. Credentials are issued only by the certifying bodies named in each program, after their own exams.

Why a Systematic Physical Examination Matters

A thorough, repeatable physical examination is the foundation of every clinical encounter. As a credentialed veterinary technician, you are responsible for collecting accurate baseline data, identifying changes from previous visits, and communicating findings clearly to the supervising veterinarian. Missing a parameter or recording it inaccurately can delay diagnosis and harm the patient. The head-to-tail approach ensures nothing is skipped, regardless of how busy the clinic becomes.

Safety First: Handling and Restraint

Before touching any patient, assess temperament and review the record for bite or scratch warnings. Use appropriate restraint techniques — lateral recumbency, sternal restraint, or a gentle scruff when indicated for cats — and ask for a second handler if the animal shows signs of fear or aggression. Never place your face near an unfamiliar animal's mouth. Muzzles are appropriate when patient or handler safety is at risk; document their use. Always confirm the patient's identity against the medical record before beginning.

The 14-Step Head-to-Tail Sequence

A standardized sequence prevents omissions. Work from nose to tail on both dogs and cats, following these steps in order:

1. General appearance and mentation — note alertness, body posture, and gait before the animal is aware of being examined.

2. Body weight and body condition score (BCS) — record weight in kilograms; assign a BCS using a validated 9-point scale (Purina) or 5-point scale, depending on clinic protocol.

3. Temperature — obtain a rectal temperature with a lubricated digital thermometer. Normal range: approximately 100.5–102.5 °F (38.1–39.2 °C) in dogs and cats.

4. Pulse rate and character — palpate the femoral artery; count beats per minute and note rhythm and quality (strong, weak, bounding, thready).

5. Respiration rate and character — count breaths per minute by observing thoracic excursions for 30–60 seconds; note effort and pattern.

6. Mucous membrane color and moisture — lift the lip and examine the gingival mucosa; normal color is salmon-pink and moist. Document any pallor, cyanosis, icterus, or injected (brick-red) appearance.

7. Capillary refill time (CRT) — apply firm digital pressure to the gingiva for one to two seconds, then release and count the seconds until color returns. Normal CRT is less than two seconds; prolonged CRT suggests poor perfusion.

8. Eyes — inspect for discharge, symmetry, scleral injection, corneal clarity, and pupillary light reflex using a penlight; use an ophthalmoscope if indicated.

9. Ears — visualize the pinnae and canal entrance; use an otoscope to assess the tympanic membrane. Note odor, discharge color, and amount of debris.

10. Oral cavity — examine teeth for tartar accumulation, fractures, and mobility; inspect gingiva for gingivitis, ulcers, or masses; check palate and tongue.

11. Lymph nodes — palpate the submandibular, prescapular, axillary, inguinal, and popliteal nodes bilaterally. Note size, shape, symmetry, and consistency. Enlarged or painful nodes are abnormal.

12. Thoracic auscultation — place the stethoscope on both sides of the chest systematically, covering all lung fields and cardiac valvular areas. Note heart rate, rhythm, and the presence of murmurs (grade and location) or adventitious lung sounds (crackles, wheezes).

13. Abdominal palpation — use both hands to assess organ size, symmetry, and the presence of pain, masses, or fluid. In cats, ballottement may help identify free fluid.

14. Integument, musculoskeletal, and neurological screen — run your hands over the entire coat and skin assessing for ectoparasites, lesions, masses, or pain on palpation; observe range of motion and gait; note any tremors, ataxia, or proprioceptive deficits.

Recording and Communicating Findings

Document every parameter using correct medical terminology and objective language. Write what you observe, not your interpretation of its significance — that is the veterinarian's role. Flag abnormal findings immediately by circling them on the examination form and notifying the veterinarian verbally. When presenting findings, use a concise format: species, breed, age, sex, reason for visit, vital signs in order, then abnormal findings with their anatomical location and descriptors. For example: "Four-year-old intact male domestic shorthair presenting for annual wellness. Temperature 102.1 °F, pulse 160 bpm and regular, respiration 24 rpm. Grade II/VI left apical systolic murmur noted on auscultation. All other parameters within normal limits."

Species-Specific Considerations

Normal heart rate in dogs varies with size: large breeds typically have lower resting rates than toy breeds. Cats may have elevated rates due to stress (white-coat tachycardia), so note behavioral state when recording. Purring can obscure cardiac and pulmonary sounds in cats; gentle occlusion of the nares for a few seconds or wetting the fur over the thorax can temporarily interrupt purring to allow clear auscultation.

Scope of Practice Reminder

Technicians collect and record data and perform procedures under veterinary direction. Diagnosing abnormal findings — determining what the murmur means, what caused lymphadenopathy, or whether a mass is benign — is the exclusive role of the licensed veterinarian. Your job is accurate data collection and clear communication.

Key terms8

Body condition score (BCS)A numerical rating system used to assess a patient's body fat and muscle mass relative to ideal weight; commonly scored on a 5-point or 9-point scale.
Capillary refill time (CRT)The time in seconds for mucous membrane color to return after brief blanching pressure is applied; a value under two seconds is considered normal and reflects adequate peripheral perfusion.
AuscultationThe act of listening to internal body sounds, particularly cardiac and pulmonary sounds, using a stethoscope.
LymphadenopathyAbnormal enlargement of one or more lymph nodes, which may indicate infection, inflammation, or neoplasia.
Mucous membrane colorThe color of the moist tissue lining the oral cavity, used as a clinical indicator of oxygenation, perfusion, and systemic health; normal is salmon-pink.
Cardiac murmur gradeA standardized scale (I through VI) used to describe the intensity of an abnormal heart sound; higher grades are louder and more clinically significant.
MentationA patient's level of consciousness and mental awareness; descriptors include alert, obtunded, stuporous, and comatose.
Adventitious lung soundsAbnormal breath sounds heard during auscultation, such as crackles (associated with fluid or consolidation) and wheezes (associated with airway narrowing).

Worked examples4

1. A patient's rectal temperature reads 103.8 °F. Determine whether this is within the normal range and calculate how many degrees above the upper limit of normal it is.
  1. Recall the normal rectal temperature range for dogs and cats: approximately 100.5–102.5 °F.
  2. Compare the recorded value: 103.8 °F exceeds the upper limit of 102.5 °F.
  3. Calculate the difference: 103.8 − 102.5 = 1.3 °F above the upper limit of normal.
  4. Classify the finding: a temperature above 102.5 °F is considered a fever (pyrexia) and should be flagged and reported to the supervising veterinarian.
Answer: 103.8 °F is 1.3 °F above the upper limit of normal (102.5 °F) and represents a fever that must be documented and reported.
2. You are counting a dog's pulse for 15 seconds and count 22 beats. Calculate the pulse rate in beats per minute and determine whether it falls within a typical normal range for a medium-breed adult dog (approximately 60–140 bpm).
  1. Multiply the 15-second count by 4 to convert to beats per minute: 22 × 4 = 88 bpm.
  2. Compare to the reference range of 60–140 bpm for a medium-breed adult dog.
  3. 88 bpm falls within that range.
  4. Document as: pulse 88 bpm, regular. No flag needed, but always note rate alongside rhythm and quality.
Answer: The pulse rate is 88 bpm, which is within the normal range for a medium-breed adult dog.
3. During oral examination you note the gingiva appears pale white rather than salmon-pink, and the CRT is 3 seconds. Describe what each finding suggests and how you should respond.
  1. Pale white mucous membranes suggest reduced red blood cell mass (anemia) or severely compromised peripheral perfusion.
  2. A CRT of 3 seconds exceeds the normal upper limit of less than 2 seconds, indicating sluggish peripheral blood flow consistent with poor perfusion or shock.
  3. Both findings together are clinically significant and represent a potential emergency.
  4. Flag both parameters on the examination form immediately and notify the supervising veterinarian without delay; do not continue the routine examination before doing so.
Answer: Pale mucous membranes and a CRT of 3 seconds together indicate compromised perfusion requiring immediate veterinarian notification.
4. A cat's respiratory rate is counted over 30 seconds and 14 breaths are observed. Calculate the rate per minute and determine whether it is within the commonly cited normal range of approximately 20–30 breaths per minute for a resting cat.
  1. Multiply the 30-second count by 2: 14 × 2 = 28 breaths per minute.
  2. Compare to the resting normal range of approximately 20–30 breaths per minute.
  3. 28 bpm falls within the normal range.
  4. Document as: respiration 28 rpm, regular effort, no increased abdominal component noted.
Answer: The respiratory rate is 28 breaths per minute, which is within the normal resting range for a cat.
In class: Watch an instructor-led demonstration of the complete physical examination sequence on a live clinic patient, noting systematic approach, terminology used, and documentation format. · Practice the full examination sequence on two student-paired live animals in the skills lab, using a standardized examination form to record temperature, pulse, respiration, mucous membrane color, capillary refill time, lymph node palpation, body condition score, and auscultation findings. · Compare examination findings with a partner, reconcile any discrepancies by re-examining the patient, and present findings verbally to the instructor as though reporting to a supervising veterinarian.
Materials: Live canine and feline patients or high-fidelity simulators, stethoscopes, thermometers, penlight, ophthalmoscope, otoscope, standardized physical examination form, Muñana & Muñana Small Animal Physical Examination chart
Check: Instructor observational checklist: student completes all 14 examination steps in correct order, documents findings using accurate terminology, and correctly flags any abnormal parameter; pass = 13 of 14 steps correct (93%).

Practice check8

Answer each question, then check it. Nothing is recorded; this is your own practice.

Patient Assessment and Triage
1. During a routine physical examination on a two-year-old dog, you observe that the gingival mucous membranes are brick-red and slightly tacky. What is the most appropriate immediate action?
Veterinary Nursing Care and Clinical Procedures
2. Which of the following correctly describes the normal capillary refill time in a healthy dog or cat?
Veterinary Nursing Care and Clinical Procedures
3. You are auscultating a cat's thorax and cannot clearly hear heart sounds because the cat is purring loudly. Which technique is most appropriate to interrupt purring temporarily?
Patient Assessment and Triage
4. When palpating lymph nodes during a physical examination, which of the following findings is considered abnormal and should be flagged?
Patient Assessment and Triage
5. A veterinary technician records a dog's rectal temperature as 99.8 °F. Based on the normal range of approximately 100.5–102.5 °F, how should this finding be documented?
Veterinary Nursing Care and Clinical Procedures
6. Which body condition scoring scale is commonly validated and used for companion animals in clinical practice?
Professional and Ethical Responsibilities / Scope of Practice
7. During physical examination of a cat, a Grade III/VI left apical systolic murmur is detected. What is the veterinary technician's appropriate scope-of-practice response?
Patient Assessment and Triage
8. In the standardized head-to-tail examination sequence, at which point should general appearance and mentation be assessed?
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