Nokea
A theory is a set of concepts, definitions, relationships and assumptions that:
- A. Explain a phenomenon
- B. Formulate legislation
- C. Measure nursing functions
- D. Reflect the domain of nursing practice
Correct Answer: A
Rationale: A theory e.g., Henderson's uses concepts (e.g., breathing), definitions (clarifying terms), relationships (how needs interact), and assumptions (e.g., patients seek independence) to explain phenomena like recovery. This informs nursing actions e.g., why positioning aids breathing. Formulating legislation is policy, not theory's role indirectly influenced. Measuring functions suits research, not theory's explanatory purpose. Reflecting the domain describes scope, not function explanation is active. Theories explain health-related events, providing nurses frameworks to understand and address client needs, making this the precise definition.
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Mr. Gary was referred to a cardiologist for his heart condition. This is an example of?
- A. Primary care
- B. Secondary care
- C. Tertiary care
- D. Health promotion
Correct Answer: B
Rationale: Referral to a cardiologist is secondary care (B) specialized, per system. Primary (A) is initial, tertiary (C) advanced/rehab, promotion (D) preventive not specialist-based. B fits referral level, making it correct.
The master gland controls the thyroid hormone by secreting
- A. Thyroxine
- B. Triiodothyronine
- C. Thyroid stimulating hormone
- D. Calcitonin
Correct Answer: C
Rationale: The pituitary secretes TSH e.g., stimulates thyroid unlike thyroxine, T3 (thyroid products), calcitonin (calcium). Nurses understand e.g., TSH tests for regulation, per endocrine.
Client has undergone Upper GI and Lower GI series. Which type of health assessment framework is used in this situation?
- A. Functional health framework
- B. Head to toe framework
- C. Body system framework
- D. Cephalocaudal framework
Correct Answer: C
Rationale: Upper and Lower GI series use a body system framework (C), targeting digestive system, per assessment types. Functional (A) assesses ADLs, head-to-toe (B) and cephalocaudal (D) are physical sweeps. C fits organ focus, making it correct.
A nurse uses an institution's procedure manual to confirm how to insert a nasogastric tube. The level of critical thinking the nurse is using is:
- A. Basic critical thinking
- B. Commitment
- C. Complex critical thinking
- D. Scientific method
Correct Answer: A
Rationale: Basic critical thinking involves following established guidelines or procedures, like using a manual for nasogastric tube insertion, typical for novices relying on concrete rules. The nurse here seeks confirmation, indicating dependence on external standards rather than independent judgment. Commitment reflects decisive action based on internalized reasoning, not manual reliance. Complex critical thinking analyzes and adapts procedures (e.g., modifying technique for patient anatomy), requiring experience beyond rote steps. The scientific method tests hypotheses, not applicable to routine protocol checks. Basic critical thinking suits this scenario, as the nurse applies learned steps without deviation, a foundational level ensuring safe practice while building toward higher-order skills in dynamic clinical settings.
The nurse is reviewing the arterial blood gas results of an assigned client. Which arterial blood gases indicate metabolic alkalosis?
- A. pH of 7.35, Pco2 of $50 \mathrm{~mm} \mathrm{Hg}, \mathrm{HCO} 3- of $32 \mathrm{mEq} / \mathrm{L}$
- B. pH of 7.45, Pco2 of $35 \mathrm{~mm} \mathrm{Hg}, \mathrm{HCO} 3- of $22 \mathrm{mEq} / \mathrm{L}$
- C. pH of 7.38, Pco2 of $45 \mathrm{~mm} \mathrm{Hg}, \mathrm{HCO} 3- of $32 \mathrm{mEq} / \mathrm{L}$
- D. pH of 7.48, Pco2 of $40 \mathrm{~mm} \mathrm{Hg}, \mathrm{HCO} 3- of $36 \mathrm{mEq} / \mathrm{L}$
Correct Answer: D
Rationale: Metabolic alkalosis features high pH (>7.45) and elevated HCO3- (>26 mEq/L) with normal Pco2 (35-45 mm Hg). Option D (pH 7.48, Pco2 40, HCO3- 36) fits this, indicating excess base. A is respiratory acidosis. B is normal. C is compensated. D is correct. Rationale: High HCO3- from vomiting or diuretics causes alkalosis, uncompensated here, per ABG interpretation principles.