Medical Test and Their Indications

Medical Tests and Their Indications

Test Name	Indication
Aldehyde test	Leishmaniasis
Allen test	ABG (Arterial Blood Gas)
Bangle test	Protein Energy Malnutrition (PEM)
Basic Metabolic Panel (BMP)	Kidney and liver function, electrolytes, glucose
Benedict test	Urine glucose
Biopsy	Tissue abnormalities, cancer confirmation
Binet test	Intelligence test
Bone Density Scan (DEXA)	Osteoporosis
Caloric test	Vestibulo-ocular reflex
Chest X-ray	Lung conditions (e.g., pneumonia, tuberculosis)
Colonoscopy	Colorectal cancer screening
Complete Blood Count (CBC)	Anemia, infection, general health
Comprehensive Metabolic Panel (CMP)	Organ function, electrolytes
Confrontation test	Central & peripheral vision
CT Scan	Detailed cross-sectional imaging for various conditions
Dexamethasone suppression test	ACTH secretion
Dick test	Scarlet fever
Direct Coombs test	Hemolytic anemia
Echocardiogram	Heart structure and function
Electrocardiogram (ECG)	Heart rhythm evaluation
ELISA test	HIV detection
Endoscopy	Digestive tract examination
Fasting Blood Glucose	Diabetes diagnosis
Fern test	Amniotic fluid leakage
Fouchet test	Hyperbilirubinemia
Guaiac test	Fecal occult blood
Guthrie test	Phenylketonuria (PKU)
Hanging drop test	CSF leakage
Hemoccult test	Fecal occult blood
Hemoglobin A1c (HbA1c)	Long-term blood sugar control
Hey's test	Bile in urine
Knee kiss test	Meningitis in children
Kreim test	Sarcoidosis
Lipid Profile	Heart disease risk (cholesterol levels)
Liver Function Tests (LFT)	Liver health
Mammography	Breast cancer screening
Mantoux test	Tuberculosis screening
MRI Scan	Soft tissue imaging
Pap Test	Cervical cancer screening
PCR test	COVID-19 detection (and other infections)
Prostate-Specific Antigen (PSA)	Prostate cancer screening
Rinne test	Hearing loss evaluation
Romberg test	Balance assessment
Schirmer's test	Dry eye diagnosis
Spirometry	Lung function assessment
Thyroid Stimulating Hormone (TSH)	Thyroid disorders
Troponin test	Myocardial infarction
Urinalysis	Urinary tract infections, kidney disease
Weber test	Hearing loss lateralization

No matching tests found.

Medical Tests Reference Table | For educational purposes only

Haematemesis vs Hemoptysis

Hemoptysis vs Hematemesis

Jump to: Comparison Respiratory GI System

Clinical Feature	Hemoptysis (Respiratory)	Hematemesis (GI)
Definition	Blood coughed up from lungs/bronchi	Blood vomited from upper GI tract
Key Clues	"Cough", "frothy", "chest pain"	"Nausea", "coffee-ground"
pH	Alkaline (≥7)	Acidic (≤4)
Appearance	Bright red, frothy	Dark red/brown, clotted
Emergency Care	- High-flow O₂ - Lateral position	- IV PPI - Blood transfusion
Diagnostic Tests	- Chest X-ray - Bronchoscopy	- Endoscopy - NG aspiration
Volume Threshold	Massive: >200mL/24h	Massive: >1L/24h

Crystalloids vs Colloids

Comparison of Crystalloids and Colloids

Feature	Crystalloids	Colloids
Definition	Fluids with small molecules (e.g., salts, sugars) that pass easily through cell membranes.	Fluids with large molecules (e.g., proteins, starches) that stay in blood vessels.
How They Work	Quickly spread to blood vessels and tissues to hydrate and balance electrolytes.	Stay in blood vessels longer, pulling fluid in to increase blood volume.
Examples	Normal Saline (0.9% NaCl), Ringer's Lactate, 5% Dextrose (D5W).	Albumin (5% or 25%), Hetastarch (Hespan), Dextran.
Uses	Dehydration, electrolyte imbalance, mild shock.	Severe shock, major blood loss, low protein states.
Where They Stay	Distribute to both blood vessels and tissues.	Mostly stay in blood vessels.
Cost	Cheaper and widely available.	More expensive.
Side Effects	Fewer side effects, less risk of allergies.	Risk of allergic reactions or clotting issues; requires close monitoring.
Key Nursing Point	Used for routine hydration; monitor for fluid overload.	Used in emergencies; watch for allergic reactions or breathing issues.

Burns Resuscitation Formulas

Burn Resuscitation Formulas & Calculator

🔥 Burn Fluid Calculator

Estimate 24-hour fluid needs using major resuscitation protocols.

Weight (kg) Burned TBSA (%)

📏 Rule of Nines: TBSA Estimation

Body Area	Adult (%)	Child (%)
Head & Neck	9%	18%
Each Arm	9%	9%
Chest	18%	18%
Abdomen	18%	18%
Upper Back	9%	9%
Lower Back	9%	9%
Each Leg	18%	14%
Genitalia	1%	1%

Note: Palm ≈ 1% TBSA for small burns.

Formula	Fluid Type	Volume Calculation	Administration	Key Features	Max TBSA
Parkland / Baxter	Lactated Ringer’s (LR)	4 mL × kg × %TBSA	50% in 8h, 50% in 16h	Standard for adults; avoid colloids first 24h	None
Modified Brooke	LR	2 mL × kg × %TBSA	50% in 8h, 50% in 16h	Lower volume; less edema risk	None
Consensus	LR or balanced saline	2–4 mL × kg × %TBSA	50% in 8h, 50% in 16h	Flexible; adjust to urine output	None
Evans	Colloid + Saline + Glucose	1 mL colloid + 1 mL saline × kg × %TBSA + 2000 mL D5W	50% in 8h, 50% in 16h	Early colloids; cap TBSA at 50%	50%
Galveston (Peds)	LR + 5% Dextrose	5000 mL/m² × %TBSA + 2000 mL/m² maintenance	50% in 8h, 50% in 16h	For children <30 kg; BSA-based	None
Hypertonic Saline	3% NaCl	Titrate to urine output	Adjust hourly	Reduces edema; monitor Na⁺ closely	None
Rule of 10s	LR	TBSA (%) × 10 = mL/hr (assumes 80 kg)	Full in 8h, half in 16h	Field triage tool; rapid estimate	None
Shoemaker (Electrical)	LR + Bicarbonate	6–9 mL × kg × %TBSA	Aggressive; urine goal 100 mL/hr	Prevents myoglobinuric renal failure	None
Toronto Formula	D5W + Plasma + Saline	3 mL × kg × %TBSA + 2000 mL D5W	50% in 8h, 50% in 16h	Historical; limited modern use	None

💡 Key Clinical Notes

• Start time: Begin fluids from time of injury, not admission.
• Colloids: Avoid in first 12–24 hours (except Evans/Toronto).
• Pediatrics: Add maintenance fluids (e.g., Holliday-Segar method).
• Urine output: Target 0.5–1 mL/kg/hr (adults), 1 mL/kg/hr (children).
• Over-resuscitation: Common with TBSA > 50%; monitor for compartment syndrome.
• Electrical burns: Use Shoemaker formula with bicarbonate to prevent renal failure.

© Burn Resuscitation Guide | Educational Use Only

TYPES OF NURSING DIAGNOSIS

Problem-Focused (Actual) Nursing Diagnosis

Definition: An actual problem that the patient is currently experiencing, supported by signs and symptoms.

Example: Impaired Gas Exchange

Scenario: A patient with chronic obstructive pulmonary disease (COPD) is struggling to breathe, with oxygen saturation at 88% and rapid, shallow breathing.

Diagnosis: Impaired Gas Exchange related to alveolar-capillary membrane changes as evidenced by low oxygen saturation (88%) and dyspnea.

Risk Nursing Diagnosis

Definition: No problem exists yet, but the patient has increased vulnerability to developing one due to risk factors.

Example: Risk for Falls

Scenario: An elderly patient with poor vision and unsteady gait is living alone.

Diagnosis: Risk for Falls related to impaired vision and unsteady gait.

Health Promotion Nursing Diagnosis

Definition: A patient’s readiness and motivation to improve health (even if no current problem exists).

Example: Readiness for Enhanced Nutrition

Scenario: A patient expresses a desire to eat healthier to improve energy levels and overall well-being.

Diagnosis: Readiness for Enhanced Nutrition.

Syndrome Nursing Diagnosis

Definition: A cluster of related problems that often occur together.

Example: Post-Trauma Syndrome

Scenario: A patient who survived a car accident experiences flashbacks, anxiety, and avoidance of driving.

Diagnosis: Post-Trauma Syndrome (includes related diagnoses like Anxiety, Disturbed Sleep Pattern, and Fear).

Components of Nursing Process

NURSING PROCESS

5 COMPONENTS

The nursing process is a systematic, client-centered approach that ensures comprehensive and effective care. It includes five steps: Assessment, Diagnosis, Planning, Implementation, and Evaluation, each integral to achieving positive client outcomes.

1. ASSESSMENT

Nurses gather and analyze client data through interviews, physical examinations, and review of medical records to establish a comprehensive health profile.

2. DIAGNOSIS

Nurses identify the client's health needs, problems, and risks based on the assessment data, using standardized nursing terminology.

3. PLANNING

Nurses develop a prioritized care plan with specific, measurable, attainable, realistic, and time-bound (SMART) goals tailored to the client's needs.

4. IMPLEMENTATION

Nurses put the care plan into action through various interventions, which may include direct care, education, coordination of services, and advocacy.

5. EVALUATION

Nurses assess the effectiveness of the care plan by measuring client progress toward goals and modifying the plan as needed to ensure optimal outcomes.

Cardinal vs Classical Signs

Clinical Comparison & System-wise Breakdown

In clinical practice, distinguishing between cardinal signs (essential symptoms that point directly to a diagnosis) and classical signs (historical or textbook features) is crucial for efficient diagnosis. This guide compares these signs across different body systems.

Cardinal signs are typically what bring patients to seek medical attention, while classical signs are often used in teaching and may not always be present in modern presentations of diseases.

Aspect	Cardinal Sign	Classical Sign
Definition	Primary, hallmark symptom indicating disease	Textbook feature traditionally associated with disease
Diagnostic Value	Highly suggestive or pathognomonic	Supportive, helps recognize disease
Sensitivity	High sensitivity for the condition	Often lower sensitivity but higher specificity
Examples	Chest pain in MI, cough in pneumonia	McBurney's point in appendicitis, Babinski sign
Usage	Guides urgent diagnosis and triage	Used in teaching and pattern recognition
Origin	Clinical necessity (what patients present with)	Historical or classical description
Clinical Importance	Essential for diagnosis and management	Helpful but not always necessary for diagnosis

🧠 Nervous System

Cardinal Signs:

• Seizure - Sudden, uncontrolled electrical disturbance in the brain
• Loss of consciousness - From syncope to coma
• Focal neurological deficits - Weakness, sensory loss, speech difficulties
• Headache - Especially sudden onset or "worst headache of life"

Classical Signs:

• Babinski sign - Upgoing toe in upper motor neuron lesions
• Kernig's sign - Resistance to knee extension with flexed hip in meningitis
• Romberg sign - Loss of balance with eyes closed in sensory ataxia
• Brudzinski's sign - Neck flexion causes hip/knee flexion in meningitis

❤️ Cardiovascular System

Cardinal Signs:

• Chest pain - From angina to aortic dissection
• Palpitations - Awareness of abnormal heart rhythm
• Dyspnea - Shortness of breath from cardiac causes
• Edema - Peripheral swelling from heart failure

Classical Signs:

• Levine's sign - Clenched fist over sternum describing angina pain
• Pulsus alternans - Alternating strong and weak pulses in heart failure
• Quincke's pulse - Capillary pulsations in aortic regurgitation
• Kussmaul's sign - Paradoxical rise in JVP with inspiration in cardiac tamponade

🌬️ Respiratory System

Cardinal Signs:

• Cough - Acute or chronic, productive or dry
• Hemoptysis - Coughing up blood
• Cyanosis - Bluish discoloration from hypoxia
• Dyspnea - Shortness of breath

Classical Signs:

• Egophony - "E to A" change in consolidation
• Tripod position - Leaning forward to breathe in COPD
• Pott's spine - Kyphosis from spinal TB
• Hamman's sign - Crunching sound with heartbeats in pneumomediastinum

🍽️ Gastrointestinal System

Cardinal Signs:

• Abdominal pain - Location and character important
• Jaundice - Yellow discoloration from liver/biliary disease
• Vomiting - Including hematemesis
• Change in bowel habits - Diarrhea, constipation, melena

Classical Signs:

• McBurney's point tenderness - Appendicitis
• Courvoisier's sign - Palpable gallbladder with painless jaundice
• Succussion splash - Gastric outlet obstruction
• Rovsing's sign - RLQ pain with LLQ palpation in appendicitis

🚽 Genitourinary System

Cardinal Signs:

• Dysuria - Painful urination
• Hematuria - Blood in urine
• Flank pain - Renal colic or pyelonephritis
• Oliguria/Anuria - Decreased urine output

Classical Signs:

• CVA tenderness - Costovertebral angle tenderness in pyelonephritis
• Dance's sign - Empty RLQ in intussusception
• Renal colic posture - Restless, writhing patient
• Murphy's punch sign - Flank tenderness in renal disease

🦴 Musculoskeletal System

Cardinal Signs:

• Joint swelling - With or without erythema
• Muscle weakness - Focal or generalized
• Bone tenderness - Especially after trauma
• Limited range of motion - From pain or mechanical blockage

Classical Signs:

• Boutonnière deformity - PIP flexion with DIP extension in RA
• Gower's sign - Using hands to stand in muscular dystrophy
• Step-off deformity - In spondylolisthesis
• Thomas test - For hip flexion contracture

🩺 Endocrine System

Cardinal Signs:

• Polyuria - Excessive urination
• Weight change - Unexplained gain or loss
• Heat/cold intolerance - Thyroid dysfunction
• Fatigue - Persistent tiredness

Classical Signs:

• Acanthosis nigricans - Velvety hyperpigmentation in insulin resistance
• Myxedema face - Puffy face in hypothyroidism
• Lid lag - In hyperthyroidism
• Buffalo hump - Dorsocervical fat pad in Cushing's

Note: Cardinal signs represent the most common and important clinical features, while classical signs are often eponymous findings that may have historical significance but variable sensitivity in modern practice.