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Nursing QUESTION #9236

Which scoring system is used to assess severity of illness and predict ICU mortality using physiological variables collected within the first 24 hours of ICU admission?

Glasgow Coma Scale (GCS)
SOFA Score
APACHE II Score✔️
CURB-65

Correct Answer Logic:

Correct Answer: C — APACHE II Score

ICU Severity Scoring Systems:

Score	Full Name	Use
APACHE II	Acute Physiology and Chronic Health Evaluation II	ICU mortality prediction (first 24h data)
SOFA	Sequential Organ Failure Assessment	Organ failure tracking, sepsis diagnosis
SAPS II	Simplified Acute Physiology Score II	ICU outcome prediction
CURB-65	—	Pneumonia severity (community setting)
GCS	Glasgow Coma Scale	Neurological status, not general ICU severity

APACHE II uses 12 physiological variables (temperature, MAP, HR, RR, oxygenation, pH, Na$^+$, K$^+$, creatinine, hematocrit, WBC, GCS) + age + chronic health points. Maximum score = 71; higher score = higher predicted mortality.

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General Knowledge QUESTION #8595

Question 3802

Which religion is considered the oldest in the world?

Judaism
Christianity
Buddhism
Hinduism✔️

Correct Answer Logic:

Hinduism has origins dating back thousands of years BCE.

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Paper-I (Pharmaceutics II (Industrial and Quality Control) and Pharmaceutics III (Hospital and Community Pharmacy)) QUESTION #5741

Question 3803

What is the primary function of a 'Blood Bank Service' within a hospital organization?

Conducting urine tests
Storing and distributing blood products✔️
Performing X-rays
Advising on nutrition

Correct Answer Logic:

Blood banks store and distribute blood products to clinical departments.

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Chemistry QUESTION #7193

Question 3804

In the estimation of nitrogen using the Dumas method, $0.3 \text{ g}$ of an organic compound yielded $50 \text{ mL}$ of nitrogen gas collected at $300 \text{ K}$ and $715 \text{ mm Hg}$ pressure. Determine the percentage of nitrogen in the compound. (Aqueous tension at $300 \text{ K} = 15 \text{ mm Hg}$)

15.46%
17.46%✔️
16.46%
18.46%

Correct Answer Logic:

First, calculate the volume of nitrogen at STP ($P_1V_1/T_1 = P_2V_2/T_2$):

$P_1 = 715 - 15 = 700 \text{ mm Hg}$ [cite: 3, 53]
$V_1 = 50 \text{ mL}$, $T_1 = 300 \text{ K}$ [cite: 18]
$V_{STP} = \frac{700 \times 50 \times 273}{300 \times 760} \approx 41.9 \text{ mL}$ [cite: 19]
Mass of $N_2 = \frac{28 \times 41.9}{22400} \approx 0.0524 \text{ g}$ [cite: 54]
$\% \text{ Nitrogen} = \frac{0.0524}{0.3} \times 100 \approx 17.46\%$ [cite: 56]

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Mathematics QUESTION #6938

Question 3805

If $\displaystyle\sum_{r=0}^{25}\left\{{}^{50}C_r \cdot {}^{50-r}C_{25-r}\right\} = K\binom{50}{25}$, find the value of $K$.

$(25)^2$
$2^{25}-1$
$2^{24}$
$2^{25}$✔️

Correct Answer Logic:

Note: ${}^{50}C_r \cdot {}^{50-r}C_{25-r} = \dfrac{50!}{r!(50-r)!} \cdot \dfrac{(50-r)!}{(25-r)!(25)!} = \dfrac{50!}{r!(25-r)!25!} = {}^{50}C_{25}\cdot{}^{25}C_r$

So the sum $= {}^{50}C_{25}\displaystyle\sum_{r=0}^{25}{}^{25}C_r = {}^{50}C_{25}\cdot 2^{25}$

Therefore $K = \mathbf{2^{25}}$.

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General Abilities QUESTION #4589

Question 3806

Two numbers are in ratio $7:9$. If their sum is $64$, what is the larger number?

$28$
$36$✔️
$32$
$56$

Correct Answer Logic:

Total parts = $7+9=16$. Larger = $\frac{9}{16} \times 64 = 36$

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Biomedical Sciences QUESTION #3809

Question 3807

Prolonged dietary iodine deficiency in adults is most likely to lead to which thyroid disorder?

Myxoedema✔️
Toxic adenoma of the thyroid
Thyrotoxicosis
Subclinical hyperthyroidism

Correct Answer Logic:

Chronic iodine deficiency leads to reduced thyroid hormone production, causing hypothyroidism and its clinical manifestation myxoedema, characterised by non-pitting oedema, dry skin, and mental slowing.

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Tourism & Hospitality Management QUESTION #1638

Question 3808

According to the Travel & Tour Operations course, which of the following correctly describes the THREE phases of tour operations as a business process?

Planning, Marketing, and Evaluation
Pre-tour operation (planning, packaging, and marketing), Tour execution (on-ground management and delivery), and Post-tour phase (evaluation, feedback, and follow-up)✔️
Costing, Pricing, and Selling
Booking, Departure, and Return

Correct Answer Logic:

The Travel & Tour Operations course (Module overview) explicitly identifies three major functions of tour operations: (1) Pre-tour operation — covering planning, supplier contracting, packaging, costing, and marketing; (2) Tour execution — the on-ground delivery of the tour; and (3) Post-tour phase — covering evaluation, customer feedback, complaint handling, and future planning.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3132

Question 3809

The 'Cerebrospinal Fluid' (CSF) is found in which space?

Epidural space
Subdural space
Subarachnoid space✔️
Intracellular space

Correct Answer Logic:

CSF flows between the arachnoid and pia mater.

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Urdu QUESTION #5072

Question 3810

یوسفِ بے کارواں کا مفہوم کیا ہے؟

مظلوم و ستم زدہ✔️
اکیلا
لاثانی
رہبر و راہنما

Correct Answer Logic:

یوسفِ بے کارواں سے مراد وہ شخص ہے جو ستم زدہ اور مظلوم ہو۔

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English QUESTION #8293

Question 3811

Pick the correctly spelled word:

Contemporary✔️
Contemporary
Contemporary
Contemporary

Correct Answer Logic:

The correct spelling is 'Contemporary'. (Note: All options appear identical in PDF; first is correct.)

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English QUESTION #8480

Question 3812

Select the word OPPOSITE in meaning to: Pertinent

irrelevant✔️
quick
proper
refer

Correct Answer Logic:

Pertinent means relevant; opposite is irrelevant.

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General Abilities QUESTION #7662

Question 3813

If $\log_{10} 2$, $\log_{10}(2^x - 1)$, and $\log_{10}(2^x + 3)$ are three consecutive terms of an arithmetic progression, which of the following is the value of $x$?

$x = \log_2 2$
$x = \log_2 5$✔️
$x = \log_2 3$
None of these

Correct Answer Logic:

For three terms to be in AP, $2 \cdot \log_{10}(2^x - 1) = \log_{10} 2 + \log_{10}(2^x + 3)$. This simplifies to $\log_{10}(2^x - 1)^2 = \log_{10}[2(2^x + 3)]$. Therefore, $(2^x - 1)^2 = 2(2^x + 3)$. Expanding: $2^{2x} - 2 \cdot 2^x + 1 = 2 \cdot 2^x + 6$. Simplifying: $2^{2x} - 4 \cdot 2^x - 5 = 0$. Let $y = 2^x$: $y^2 - 4y - 5 = 0$, giving $(y-5)(y+1) = 0$. Since $y > 0$, $y = 5$, so $2^x = 5$ and $x = \log_2 5$.

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Economics QUESTION #1709

Question 3814

The Chinn-Ito index (KAOPEN), frequently cited in cross-country empirical research on financial integration and capital mobility, is specifically designed to quantify a country's:

Total factor productivity in the manufacturing sector
Degree of capital account openness based on IMF's AREAER restrictions✔️
Nominal and real exchange rate volatility over a rolling period
None of these

Correct Answer Logic:

The Chinn-Ito index (developed by Menzie Chinn and Hiro Ito) is a de jure measure of capital account openness — it quantifies the extent to which a country restricts or liberalises cross-border capital transactions, based on binary variables derived from the IMF's Annual Report on Exchange Arrangements and Exchange Restrictions (AREAER). A higher KAOPEN score indicates a more open capital account. Pakistan's score has historically been low, reflecting significant capital account restrictions.

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General Abilities QUESTION #2850

Question 3815

The radius of a circle is 7 cm. Find its area. (Take $\pi = \dfrac{22}{7}$)

148 cm²
154 cm²✔️
160 cm²
176 cm²

Correct Answer Logic:

Area of circle $= \pi r^2 = \dfrac{22}{7} \times 7^2 = \dfrac{22}{7} \times 49 = 22 \times 7 = 154 \text{ cm}^2$.

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Child Health QUESTION #3927

Question 3816

A 4-year-old child presents with a sudden onset of wheezing and coughing. On examination, the temperature is $37.5^\circ ext{C}$ and the respiratory rate is $30/ ext{min}$. There is dullness to percussion at the left lung base and localized wheezing. What is the most likely diagnosis?

Inhalation of a foreign body✔️
Acute bronchial asthma
Bacterial pneumonia
Congenital tracheomalacia

Correct Answer Logic:

No explanation provided for this question.

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Paper-II (Pharmacology and Social Behaviour, Law & Ethics and Computer Sciences) QUESTION #5772

Question 3817

Captopril lowers blood pressure by inhibiting the conversion of:

Angiotensin II to I
Angiotensin I to II✔️
Bradykinin to inactive metabolites
Renin to Angiotensinogen

Correct Answer Logic:

ACE inhibitors block the conversion to the potent vasoconstrictor Angiotensin II.

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General Knowledge QUESTION #4689

Question 3818

The Black Sea and the Mediterranean Sea are connected through which waterway?

Shatt al-Arab
Dardanelles✔️
Strait of Gibraltar
Bosphorus Strait

Correct Answer Logic:

The Dardanelles (along with the Bosphorus) connects the Black Sea to the Aegean Sea and ultimately the Mediterranean Sea.

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Reading and Writing (Module-1) QUESTION #5405

Question 3819

Earth's atmosphere is bombarded by cosmic dust originating from several sources: short-period comets (SPCs), particles from the asteroid belt (ASTs), Halley-type comets (HTCs), and Oort cloud comets (OCCs). Some of the dust's material vaporizes in the atmosphere in a process called ablation, and the faster the particles move, the higher the rate of ablation. Astrophysicist Juan Diego Carrillo-Sánchez led a team that calculated average ablation rates for elements in the dust (such as iron and potassium) and showed that material in slower-moving SPC or AST dust has a lower rate than the same material in faster-moving HTC or OCC dust. For example, whereas the average ablation rate for iron from AST dust is 28%, the average rate for _______. Which choice most effectively uses data from the table to complete the example?

iron from SPC dust is 20%.
sodium from OCC dust is 100%.
iron from HTC dust is 90%.✔️
sodium from AST dust is 75%.

Correct Answer Logic:

The example illustrates lower ablation in slower-moving AST dust (28% for iron) versus higher ablation in faster-moving HTC dust (90% for iron).

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Electrical Engineering QUESTION #2150

Question 3820

A $50\text{ kVA}$ transformer has a copper loss of $800\text{ W}$ at full load. What will be the copper loss at half load?

$400\text{ W}$
$200\text{ W}$✔️
$100\text{ W}$
$600\text{ W}$

Correct Answer Logic:

Copper loss varies as the square of the load ($P_{cu} \propto I^2$). At half load, the loss is $(\frac{1}{2})^2 \times 800\text{ W} = \frac{1}{4} \times 800\text{ W} = 200\text{ W}$.

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