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Nephrotic Syndrome β classic tetrad:
- Massive proteinuria (>\(3.5\,\text{g/day}\) in adults; \(>40\,\text{mg/m}^2/\text{hr}\) in children)
- Hypoalbuminemia (<\(2.5\,\text{g/dL}\))
- Generalized edema (periorbital, pedal, ascites)
- Hyperlipidemia + lipiduria
Life-threatening complications and mechanisms:
| Complication | Mechanism |
|---|---|
| Spontaneous Bacterial Peritonitis (SBP) | Loss of immunoglobulins (IgG) and complement factors in urine β immunosuppressed |
| Thromboembolism | Loss of anticoagulant proteins (Protein C, S, antithrombin III) + increased clotting factors + hyperviscosity |
| Hypovolemic shock | Severe hypoalbuminemia β fluid shifts |
| Infection | Edema as culture medium + immunosuppression from steroids |
Treatment (minimal change disease β most common in children):
- Prednisolone: \(60\,\text{mg/m}^2/\text{day}\) for 4β6 weeks, then alternate day
- Salt restriction, fluid restriction
- Penicillin V prophylaxis (infection prevention)
- Furosemide + albumin for severe symptomatic edema
CVP interpretation:
| CVP | Interpretation |
|---|---|
| \(0 - 5 \text{ mmHg}\) | Low β hypovolemia, vasodilation |
| \(6 - 12 \text{ mmHg}\) | Normal (mechanically ventilated: \(8-12\)) |
| \(> 12 \text{ mmHg}\) | High β fluid overload, right heart failure, tension pneumothorax |
- Hypovolemic: Low CVP, low CO, high SVR β fluid loss (hemorrhage, burns, diarrhea)
- Cardiogenic: High CVP, low CO, high SVR β pump failure
- Distributive: Low/normal CVP, high CO, low SVR β sepsis, anaphylaxis, neurogenic
- Obstructive: High CVP, low CO β PE, cardiac tamponade, tension pneumothorax
The dimensions of $(\mu_0 \varepsilon_0)^{1/2}$ are:
We know that $c = \dfrac{1}{\sqrt{\mu_0 \varepsilon_0}}$, where $c$ is the speed of light with dimension $[LT^{-1}]$.
Therefore: $\sqrt{\mu_0\varepsilon_0} = \dfrac{1}{c}$
$[\sqrt{\mu_0\varepsilon_0}] = [c^{-1}] = [L^{-1}T]$
So $(\mu_0\varepsilon_0)^{1/2}$ has dimensions $[L^{-1}T]$.
In Piaget’s theory, a scheme (or schema) is a mental framework or organized pattern of behavior that children use to interpret and respond to the world. Adaptation is the broader process of adjusting to the environment, which includes assimilation and accommodation. The basic organized unit of knowledge is the scheme.
Correct Answer: A — Scheme.
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