Notes, summaries, assignments, exams, and problems for Medicine and health sciences

Defining the Normal Newborn

A normal newborn is a child born of healthy parents after a pregnancy without complications, lasting between 37 and 42 weeks, with weight and size appropriate for their gestational age.

Classification by Gestational Age

• Term: Born between 37 and 42 weeks.
• Preterm: Born before 37 weeks.
• Post-term: Born after 42 weeks.

Anatomical Characteristics and Measurements

Body Measurements

• Weight: Typically 2,700–3,800 kg. The newborn experiences physiological weight loss during the first 5 days, recovering the lost weight around the 10th day.
• Size (Length): Approximately 49–54 cm.
• Cranial Perimeter (Head Circumference): 35–36 cm. This measurement provides important information regarding brain development and possible morphological

Platelet Organelles and Their Functions

Platelets are composed of various elements and organelles, including mitochondria, lysosomes, dense granules, alpha granules, and glycogen bodies.

• Mitochondria: These are not abundant but contribute to platelet deposition and the storage of calcium and ATP.
• Lysosomes: These contain essential hydrolytic enzymes involved in cellular lysis.
• Dense granules: These are few in number and contain metals, serving a specific secretory function.
• Alpha granules: Synthesized by the Golgi apparatus, these are the most numerous organelles. They include specific proteins, such as the von Willebrand factor, and empty their contents to the outside when platelets are activated.
• Glycogen: These bodies provide energy reserves for

Reading 1: The Biology of Sleep and Night Owls

Many teenagers, like Brian, struggle to wake up for school. While teachers might perceive them as lazy, science suggests a different reason. Every human has an internal body clock, or chronotype, controlled by "clock genes." In teenagers, the body releases melatonin (the sleep hormone) much later than in adults. This means their brains are not ready to sleep until 11:00 p.m. or later. When they must wake up at 7:00 a.m., they suffer from social jet lag and feel exhausted. Scientists suggest that starting school later could make students more focused and productive.

Comprehension Questions

• True or False? Teenagers are tired in the morning because they are irresponsible.
  Answer: False. Quote: "Science

Flabby Etiology and Treatment

Etiology of Flabby Tissue:

1. Old, loose dentures.
2. Anterior interference determining Vertical Dimension of Occlusion (VDO).
3. Rapid ridge resorption leading to a knife-edge ridge.
4. Complete maxillary denture opposing natural mandibular teeth.
5. Loose, ill-fitting dentures.
6. Dentures with anterior porcelain teeth and posterior resin teeth.
7. Over-eruption of opposing natural teeth.
8. Failure to remove dentures at night.
9. Overextended denture border causing epulis fissuratum.

Treatment for Flabby Tissue:

A) Removal of Cause:

• Remove pressure areas.
• Relining old dentures with soft tissue conditioning.
• Correction of occlusal disharmonies.
• Restoration of lost VDO.

B) Remove Denture: (For acute inflammation).

C) Recovery Program:

1. Massage soft tissues.

Understanding Medical Prescriptions

A prescription is a written order from a registered medical practitioner to a pharmacist to compound and dispense specific medicaments for a patient. While generally written in English, Latin terms and abbreviations are frequently used to save time.

Parts of a Prescription

• Date
• Patient details (Name, Age, Sex, Address)
• Superscription
• Inscription
• Subscription
• Signature/Transcription
• Renewal instructions
• Prescriber details (Signature, Address, Registration Number)

1. Date

The date is a critical component. It helps the pharmacist verify when the medication was prescribed and is essential for tracking narcotic and habit-forming drugs to prevent misuse.

2. Patient Details

The name and address assist in patient identification,...

✅ Control of Haemorrhage (Bleeding)

Controlling haemorrhage involves stopping the bleeding, maintaining circulation, and preventing shock. The approach depends on the type and severity of the bleeding.

Types of Haemorrhage

1. External Haemorrhage: Visible bleeding from a wound.
2. Internal Haemorrhage: Bleeding inside the body.
3. Arterial Bleeding: Bright red, spurting blood.
4. Venous Bleeding: Dark red, steady flow of blood.
5. Capillary Bleeding: Oozing blood from capillaries.

Methods for Controlling Haemorrhage

Immediate Measures (First Aid)

• Direct Pressure: Apply firm pressure directly on the wound with a clean cloth or dressing.
• Elevation: Elevate the bleeding part above the heart level, if no fracture is suspected.
• Immobilization: Keep the injured part still

Comprehensive Glossary of Terms

Absorb

To interest someone a great deal and take up all their attention and energy.

Bite One's Lips

To press the soft parts of the front of the mouth between the teeth.

Bite One's Nails

To press the hard parts on the end of one's fingers between the teeth.

Bond

A legal written agreement or promise.

Box Office Hit

A film's success in terms of the number of tickets sold.

Breathe New Life Into Something

To refresh something old.

Bring About

To cause something to happen.

Bring the House Down

To make the audience laugh, clap, or cheer loudly for a long time because they liked the performance.

Conductor

Someone that directs the orchestra.

Content

Fairly happy and satisfied.

Counsellor

Someone who gives advice on a specified subject.

Current

Parkinson's Disease: Pharmacological Treatments

The primary pharmacological treatment for Parkinson's disease focuses on replenishing dopamine, the neurotransmitter deficient in the disease, and managing associated symptoms. Levodopa, often combined with carbidopa, is the cornerstone of treatment, alongside dopamine agonists, MAO-B inhibitors, COMT inhibitors, and anticholinergic agents.

Key Medications for Parkinson's Disease

1. Levodopa

   Levodopa is a dopamine precursor that can cross the blood-brain barrier and is converted into dopamine in the brain.

   It is typically combined with carbidopa, which inhibits the breakdown of levodopa before it reaches the brain, reducing side effects and improving efficacy.

   Levodopa is effective in improving motor symptoms

Anti-Inflammatory Agents: NSAIDs

Anti-inflammatory agents are a class of medicines designed to reduce pain, swelling, and fever without causing drowsiness. They are widely recognized as Non-Steroidal Anti-Inflammatory Drugs (NSAIDs), commonly used for managing minor pain, edema, and tissue damage associated with inflammatory joint diseases.

Mechanism of Action

• NSAIDs primarily function by blocking cyclooxygenase (COX) enzymes. These enzymes are responsible for producing prostaglandins, which are compounds that promote inflammation, pain, and fever. By inhibiting COX enzymes, NSAIDs effectively reduce these symptoms.

Common NSAID Drugs

• Sodium Salicylate
• Aspirin
• Mefenamic Acid
• Meclofenamate
• Indomethacin
• Sulindac
• Tolmetin
• Zomepirac
• Diclofenac
• Ketorolac
• Ibuprofen
• Naproxen
• Piroxicam

Related

Your Medication Instructions

Dear [Patient’s Name],

During our last consultation, I noticed you had some questions about how to take your medications. Here are some simple instructions to help you remember everything and feel more confident.

Medication for [Illness/Condition]

• Name: [Name of the medicine]
• Form: [Form: tablet, capsule, syrup, etc.]
• Dose: [Amount, e.g., 10 mg]
• Purpose: It helps to [purpose, e.g., lower your blood pressure].
• Frequency: Take it [how often, e.g., twice a day], preferably [when, e.g., in the morning and before bed].
• Instructions: Take it [route: by mouth, apply to the skin, inject, etc.]. [Other instructions: e.g., always take it with food, shake before use, do not crush, etc.].
• Tip: Try linking it to your meals or brushing