A client's blood glucose level is 45 mg/dl. The nurse should be alert for which signs and symptoms?
Polyuria, polydipsia, hypotension, and hypernatremia
Kussmaul's respirations, dry skin, hypotension, and bradycardia
Coma, anxiety, confusion, headache, and cool, moist skin
Polyuria, polydipsia, polyphagia, and weight loss
The Correct Answer is C
Hypoglycemia, defined as a blood glucose below 70 mg/dL, triggers an immediate sympathoadrenal response to stimulate glucose release. As levels drop further, the central nervous system suffers from a lack of fuel, leading to altered mentation and cognitive decline. If untreated, the brain's metabolic requirements cannot be met, resulting in loss of consciousness, permanent brain injury, or death.
A. Polyuria, polydipsia, hypotension, and hypernatremia: These signs are characteristic of severe hyperglycemia and dehydration, often seen in Hyperosmolar Hyperglycemic State (HHS). High glucose causes osmotic diuresis, leading to massive fluid loss and elevated sodium concentrations. These symptoms are the physiologic opposite of the clinical picture presented by a low glucose level of 45 mg/dL.
B. Kussmaul's respirations, dry skin, hypotension, and bradycardia: Kussmaul's breathing is a compensatory mechanism for metabolic acidosis, specifically seen in diabetic ketoacidosis (DKA) due to high blood sugar. Dry skin reflects dehydration caused by prolonged hyperglycemia, whereas hypoglycemia typically presents with diaphoresis. These findings indicate acidotic states rather than an acute drop in plasma glucose.
C. Coma, anxiety, confusion, headache, and cool, moist skin: These symptoms reflect the dual impact of neuroglycopenia and epinephrine release. Cool, clammy skin is a classic adrenergic sign as the body attempts to raise glucose levels through sympathetic activation. Confusion and headache are early indicators of cerebral glucose deprivation, which can quickly progress to a comatose state.
D. Polyuria, polydipsia, polyphagia, and weight loss: This triad of symptoms, known as the "3 Ps," defines the clinical presentation of undiagnosed or poorly controlled hyperglycemia. In the absence of insulin, glucose cannot enter cells, leading to cellular starvation and weight loss despite increased intake. These symptoms develop over days or weeks, not as a result of acute hypoglycemia.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Effective nursing care during a crisis requires balancing clinical urgency with empathetic, therapeutic communication. Therapeutic communication utilizes active listening and validation of feelings to reduce parental anxiety, which is essential for future education and adherence. The nurse must address the immediate medical need of the patient while providing a concrete commitment to the caregiver's psychological support.
A. "If you'll wait in your son's room, the physician will talk with you as soon as he's free.": This response abdicates the nursing responsibility for emotional support and defers it to another provider. It may increase the mother's anxiety by implying that only the physician can address her concerns about the new diagnosis. This dismissive approach fails to establish a supportive nurse-client relationship during a highly vulnerable moment.
B. "Everything will be just fine. I'll be back in a minute and then we can talk.": Providing false reassurance is a non-therapeutic communication technique that minimizes the mother's legitimate concerns and fears. It ignores the emotional gravity of a chronic illness diagnosis and provides no factual basis for comfort. This can damage the nurse's credibility and block further open communication from the parent.
C. "I can't talk now. I have to give your son his insulin as soon as possible.": While technically accurate regarding the priority of medication, this statement is blunt and lacks empathy for the mother’s distress. It creates a perceived barrier between the nurse and the family, making the mother feel like an interruption rather than a partner in care. This approach hinders the holistic care required in pediatric nursing.
D. "I'm going to give your son some insulin. Then I'll be happy to talk with you.": This response correctly prioritizes the patient's physiological needs while explicitly acknowledging and validating the mother’s request for communication. It provides a clear timeframe for when the nurse will be available, which helps reduce the mother's uncertainty. This fosters trust and ensures both clinical and emotional priorities are met.
Correct Answer is D
Explanation
Osteomyelitis is an infection of the bone and marrow that typically occurs through hematogenous seeding or direct inoculation from an adjacent soft tissue ulcer. The structure of bone, with its microscopic channels, provides a sanctuary for bacteria to proliferate while remaining shielded from the immune system. The resulting inflammatory response causes increased intraosseous pressure, leading to bone necrosis and the formation of a sequestrum.
A. Escherichia coli: While this gram-negative bacillus can cause bone infections, it is typically associated with urinary tract sources or vertebral osteomyelitis in older adults. It is not the primary pathogen isolated from the majority of peripheral bone infections. Its presence usually suggests a secondary infection rather than the primary etiologic agent of a leg ulcer.
B. Pseudomonas: This opportunistic organism is frequently found in "puncture wound" osteomyelitis, particularly those involving the foot and rubber-soled shoes. It is known for its high resistance to multiple antibiotic classes and its ability to form protective biofilms. However, it remains less prevalent than the leading gram-positive cocci in general clinical cases.
C. Proteus: Members of the Proteus genus are occasionally isolated from polymicrobial infections, especially in chronic wounds with extensive tissue decay. They are known for their urease production, which can alter the local pH of the wound environment. Despite this, they are considered uncommon primary pathogens in the initial development of bone infection.
D. Staphylococcus aureus: This organism is the most frequent cause of osteomyelitis across all age groups due to its potent adhesion molecules that bind to bone matrix proteins. It possesses various virulence factors that allow it to invade bone cells and persist in a dormant state. It is isolated in up to 80% of cases involving direct bone contamination from skin ulcers.
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