Kiến thức chăm sóc bệnh nhân cơ bản

Fundamental Patient Care Knowledge for Healthcare Professionals

Providing safe and effective care requires a solid understanding of basic nursing and medical procedures. This course consolidates essential concepts drawn from a practical quiz, offering detailed explanations, best‑practice tips, and memorable mnemonics to help you retain the information.

1. Suction Pressure for Pediatric Airway Clearance

When removing mucus from a school‑age child (generally 6‑12 years), the recommended suction pressure is 60 – 80 mmHg. This range is gentle enough to keep the airway mucosa intact while still being strong enough to mobilize secretions.

• Why 60‑80 mmHg? The pressure mimics a normal resting heart rate (60‑80 beats per minute), providing a familiar reference point for clinicians.
• Clinical tip: Start at the lower end of the range and increase gradually only if the secretions are particularly thick.
• Safety reminder: Pressures above 100 mmHg can cause mucosal trauma, bronchospasm, or hemoptysis.

2. Choosing the Correct Bandage for Chin and Knee Support

For immobilising both the chin and the knee, the 4‑strip bandage (băng 4 dải) is the most appropriate. This type wraps around the limb or facial region in a complete circle, providing uniform compression and stability.

• Advantages of a 4‑strip bandage:
  • Even distribution of pressure reduces the risk of localized skin breakdown.
  • Easy to apply and adjust without specialized equipment.
  • Allows quick inspection of the underlying tissue.
• Mnemonic: "Four sides, full circle – perfect for chin and knee."

3. Optimal Patient Position for Feeding via a Levine Tube

The ideal angle for feeding a patient through a Levine nasogastric tube is a semi‑upright position of 30 – 45 degrees. This posture minimizes the risk of gastro‑esophageal reflux and aspiration.

• Why not higher? Angles above 45 degrees can cause discomfort and may shift the tube tip.
• Why not lower? Angles below 30 degrees increase the likelihood of reflux and subsequent aspiration pneumonia.
• Practical reminder: Use a bedside wedge or adjustable chair to maintain the angle throughout the feeding session.

4. Most Effective and Common Hemostasis Technique

Among the various methods to control bleeding, the direct pressure bandage (băng ép cầm máu) is both the most effective and the most widely used. It offers rapid control of hemorrhage without the need for specialized tools.

• Steps for applying direct pressure:
  • Place a sterile gauze pad directly over the wound.
  • Apply firm, continuous pressure with a clean bandage.
  • Maintain pressure for at least 5‑10 minutes before checking for cessation of bleeding.
• Key point: If bleeding persists, increase pressure or consider adjunctive methods such as a tourniquet for limb injuries.

5. Wound Irrigation Solution for Greasy or Suppurative Injuries

For wounds that contain a lot of oily or greasy material, purple (tím) solution diluted 1/1000 – 1/10000 is the preferred irrigant. This antiseptic solution effectively dissolves lipids, facilitating thorough cleaning.

• Mechanism: The solution contains a surfactant component that emulsifies fatty debris, allowing it to be flushed away with saline.
• Application tip: Irrigate the wound with a gentle stream for 5‑10 minutes, ensuring the solution reaches all wound crevices.
• Mnemonic: "Purple dissolves the greasy – think of violet cleaning power."

6. Maximum Duration for Indwelling Silicone Catheters

When using a silicone urinary catheter for intermittent catheterisation, the catheter can safely remain in place for up to 2 months. Silicone’s biocompatibility reduces the risk of infection and maintains moisture balance.

• Why silicone? Its inert nature prevents bacterial colonisation and it is less likely to cause urethral trauma compared with latex.
• Monitoring advice: Inspect the catheter site daily for signs of irritation, and replace the catheter if any discoloration or blockage occurs before the 2‑month limit.

7. Reading Time for a Chemical Reaction Test

Most bedside chemical reaction tests (e.g., urine dip‑stick, blood glucose, or rapid antigen tests) require a reading window of 15 – 20 minutes. This interval ensures that the reaction has fully developed and provides accurate results.

• Common pitfalls: Reading too early may miss a faint colour change; reading too late can lead to false‑positive results due to over‑development.
• Best practice: Use a timer and record the exact reading time in the patient chart.

8. Shock Type Most Frequently Associated with Intravenous Therapy

The shock most commonly triggered by infusion therapy is anaphylactic (phản vệ) shock. This severe allergic reaction can occur rapidly after exposure to certain medications or blood products.

• Signs to watch for:
  • Sudden hypotension and tachycardia.
  • Urticaria, angioedema, or bronchospasm.
  • Feeling of impending doom or loss of consciousness.
• Immediate management: Stop the infusion, call for emergency assistance, administer intramuscular epinephrine, and provide airway support as needed.
• Mnemonic: "IV = Immediate Vigilance for anaphylaxis."

Summary of Key Points

Understanding these fundamental concepts enhances patient safety and improves clinical outcomes. Below is a quick reference table you can keep at the bedside:

• Suction pressure (children): 60‑80 mmHg
• Bandage for chin/knee: 4‑strip bandage
• Levine tube feeding angle: 30‑45°
• Hemostasis method: Direct pressure bandage
• Greasy wound irrigant: Purple solution 1/1000‑1/10000
• Silicone catheter dwell time: Up to 2 months
• Reaction test reading time: 15‑20 min
• Shock from infusion: Anaphylactic

Regular review of these guidelines, combined with hands‑on practice, will solidify your competence in basic patient care. Keep this course handy as a refresher before shifts, examinations, or competency assessments.