Orientation, Directional Terms, Anatomy Facts, and The Nursing Process

Orientation and Directional Terms

• Definition: These 11 terms describe the position of body parts in relation to one another.

  1. Superior (cranial or cephalic): The position is towards the head end or the upper part of a structure or the body; above.

  2. Inferior (caudal): The position is away from the head end or toward the lower part of a structure or the body; below.

  3. Anterior (ventral): The position is toward or at the front of the body; in front of.

  4. Posterior (dorsal): The position is toward or at the backside of the body; behind.

  5. Medial: The position is toward or at the midline of the body, on the inner side of.

  6. Lateral: The position is away from the midline of the body; on the outer side of.

  7. Intermediate: The position is between a more medial and a more lateral structure.

  8. Proximal: The position is close to the origin of the body part or the point of attachment of a limb to the trunk.

  9. Distal: The position is farther from the origin of a body part or the point of attachment of a limb to the body trunk.

  10. Superficial (external): The position is toward or at the body surface.

  11. Deep (internal): The position is away from the body surface; more internal.

Practical Examples of Directional Terms

• Superior: The forehead is superior to the nose.

• Inferior: The navel is inferior to the breastbone.

• Anterior: The breastbone is anterior to the spine.

• Posterior: The heart is posterior to the breastbone.

• Medial: The heart is medial to the arm.

• Lateral: The arms are lateral to the chest.

• Intermediate: The collarbone is intermediate between the breastbone and the shoulder.

• Proximal: The elbow is proximal to the wrist (meaning that the elbow is closer to the shoulder or attachment point of the arm than the wrist is).

• Distal: The knee is distal to the thigh.

• Superficial: The knee is superficial to the skeleton.

• Deep: The lungs are deep to the rib cage.

Core Human Anatomical Statistics

• Number of Bones: $206$ in adults; $306$ in newborns.

• Number of Muscles: $639$ total in the human body.

• Number of Muscles in the Human Arm: $72$.

• Organ and Bone Count:

  • Kidneys: $2$

  • Milk Teeth: $20$

  • Ribs: $24$ (organized into $12$ pairs)

  • Heart Chambers: $4$

  • Heart Pumps: $2$

  • Vertebrae in the Spine: $33$

  • Vertebrae in the Neck: $7$

  • Bones in the Middle Ear: $6$

  • Bones in the Face: $24$

  • Bones in the Skull: $22$

  • Bones in the Chest: $25$

  • Bones in the Arms: $6$

  • Bones in the Human Foot: $33$

  • Bones in Each Wrist: $8$

  • Bones in the Hand: $27$

• Vital Markers and Fluids:

  • Normal Blood Pressure: $120/80\,\text{mmHg}$

  • pH of Blood: $7.4$

  • Pulse Rate (per minute): $72\,\text{times}$

  • Normal Body Temperature: $37^{\circ}\text{C}$ ($98.4^{\circ}\text{F}$)

  • Average Blood Volume: $4$ to $5\,\text{liters}$

  • Viscosity of Blood: $4.5$ – $5.5$

  • Normal Blood Cholesterol Level: $250\,\text{mg/dl}$

Physiological Systems and Components

• Major Structures:

  • Largest Artery: Aorta.

  • Largest Organ: Skin.

  • Largest Gland: Liver.

  • Largest Endocrine Gland: Thyroid.

  • Largest Lymphatic Organ: Spleen.

  • Largest Part of the Brain: Cerebrum.

  • Largest and Strongest Bone: Femur.

  • Smallest Bone: Stapes.

  • Smallest Muscle: Stapedius (located in the middle ear).

• Cellular Details:

  • Biggest Cell (Female): Ovum.

  • Smallest Cell (Male): Sperm.

  • Life Span of Red Blood Cells (RBC): $120\,\text{days}$

  • Life Span of White Blood Cells (WBC): $10$ to $15\,\text{days}$

  • Largest WBC: Monocyte.

  • Smallest WBC: Lymphocyte.

  • Number of Chromosomes: $48$ ($23\,\text{pair}$).

• Specific Conditions and Processes:

  • First Transplanted Organ: Heart.

  • Small Intestine Average Length: $7\,\text{m}$

  • Large Intestine Average Length: $\approx 1.5\,\text{m}$

  • Average Weight of a Newborn Baby: $2.6\,\text{kg}$

  • Pregnancy Period: $280\,\text{days}$ ($40\,\text{weeks}$).

  • Blood Types: Universal donor group is O; Universal recipient group is AB.

  • Polycethemia: The condition resulting from an increase in RBC count.

  • Blood Bank in the Body: RBC (Note: Produced in the Bone Marrow).

  • River of Life: A term used to refer to Blood.

  • Plasma: The fluid part of the blood.

The Nursing Process (ADPIE)

• Definition: A systematic, deliberative, and dynamic method of providing patient-centered care.

• The Five Steps (ADPIE Acronym):

  1. Assessment: Gathering information about the patient's physical, emotional, mental, and social condition. This includes interviewing the patient, observing symptoms, checking vital signs, and reviewing medical history.

  2. Diagnosis: Analyzing collected data to identify health problems or nursing needs.

  3. Planning: Setting measurable goals and deciding on nursing interventions to help the patient.

  4. Implementation: Carrying out the planned nursing interventions and documenting the care provided.

  5. Evaluation: Determining whether the goals were achieved and assessing if the care plan needs changes.

• Data Types in Assessment:

  • Subjective Data: The patient's feelings, emotions, and sensations (e.g., Dizziness).

  • Objective Data: Observable and measurable data (e.g., Vital signs).

• Sources of Data:

  • Primary Data: Information obtained directly from the patient.

  • Secondary Data: Information obtained from family, medical records, or other healthcare professionals.

• Methods of Data Collection: Interview, Physical Examination, Observation, and Lab tests.

SMART Goals Framework

• Applied during the Planning phase of the nursing process:

  • Specific: What exactly should be achieved?

  • Measurable: How will success be measured? (Example: "Patient will walk $50\,\text{feet}$").

  • Attainable: Is the goal realistic for the patient?

  • Relevant/Realistic: Does it address the nursing diagnosis?

  • Time-Bound: When should it be achieved? (Example: "By end of shift").

Clinical Case Application: Respiratory Distress

• Assessment: A patient complains of difficulty breathing. The nurse checks oxygen saturation, respiratory rate, lung sounds, and asks about medical history and symptoms.

• Diagnosis: The nurse identifies "Impaired gas exchange related to airway obstruction as evidenced by shortness of breath and low oxygen saturation."

• Planning:

  • Goal: The patient will maintain oxygen saturation above $95\%$ within $24\,\text{hours}$.

  • Plan: Administer oxygen therapy, monitor breathing, and encourage deep breathing exercises.

• Implementation: The nurse administers oxygen, positions the patient upright, monitors vital signs, and teaches proper breathing techniques.

• Evaluation: After treatment, the patient's oxygen saturation rises to $97\%$ and breathing improves. The goal is achieved; the nurse continues monitoring and adjusts care as needed.

Maslow’s Hierarchy of Needs

• Proposed by: Abraham Harold Maslow, an American psychologist, in $1943$.

• Core Concept: A motivational psychology theory framing human motivation around five levels of innate needs. Individuals must fulfill foundational/basic survival needs before focusing on higher-level personal growth needs.

• The Five Levels (Base to Peak):

  1. Physiological Needs: Essential for survival. Includes Breathing, Food, Water, Shelter, Clothing, and Sleep.

  2. Safety and Security: Includes Health, Employment, Property, Family, and Social Ability.

  3. Love and Belonging Needs: Includes Friendship, Family, Intimacy, and a Sense of Connection.

  4. Esteem Needs: Includes Confidence, Achievement, Respect of others, and the need to be a unique individual.

  5. Self-Actualization Needs: The culmination of psychological health, focusing on Morality, Creativity, Spontaneity, Acceptance, and experiencing purpose, meaning, and inner potential.