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Which statements about capital income and revenue income are correct?
- Revenue income includes amounts received from renting out part of business premises.
- Capital income includes amounts received from the sale of non-current assets.
- Capital income includes loans taken by a business.
Option B (1 and 2 only) is correct.
- Statement 1 (True): Rental income is regular and recurring โ revenue income.
- Statement 2 (True): Proceeds from selling a non-current asset are a one-off receipt โ capital income.
- Statement 3 (False): Loans are liabilities, not capital income.
A metal oxide has the formula M$_{0.98}$O. The metal M exists as M$^{2+}$ and M$^{3+}$ ions. What fraction of the metal exists as M$^{3+}$?
Let $x$ = fraction of M as M$^{3+}$, $(0.98 - x)$ = fraction as M$^{2+}$.
Charge balance (O$^{2-}$ contributes $-2$): $2(0.98-x) + 3x = 2$
$1.96 - 2x + 3x = 2$
$x = 0.04$
Fraction of M as M$^{3+}$ $= \dfrac{0.04}{0.98} \times 100 \approx \mathbf{4.08\%}$
- Total isotopes = 3 (Protium, Deuterium, and Tritium).
- Radioactive isotopes = 1 (Only Tritium is radioactive, emitting low-energy $\beta^{-}$ particles).
Post-cesarean Endometritis is the most common infectious complication after CS (incidence 10โ30% without prophylaxis).
Risk factors: CS (especially emergency), prolonged ROM, prolonged labor, multiple VEs, lower socioeconomic status.
Diagnosis criteria (clinical):
- Fever \(\geq 38.5ยฐC\) on \(\geq 2\) occasions after 24 hours postpartum
- Uterine tenderness (fundal)
- Foul-smelling/abnormal lochia
- Leukocytosis
Gold Standard Treatment: IV Clindamycin + Gentamicin
- Clindamycin: \(900\,\text{mg}\) IV every 8 hours (anaerobic coverage)
- Gentamicin: \(1.5\,\text{mg/kg}\) IV every 8 hours OR \(5\,\text{mg/kg}\) once daily (gram-negative coverage)
- Continue until patient is afebrile for 24โ48 hours
- No oral follow-up needed if responded to IV therapy (ACOG recommendation)
Ampicillin is added if Enterococcus suspected (no response in 72 hours).
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