% concentration (expressed as a proportion or ratio) x volume needed = mass of reagent to use So... 10% (w/v) solution of sodium hydroxide x 200 mL needed = 20 grams of sodium hydroxide How many grams of sodium hydroxide are required to prepare a 200 ml solution of a 10% (weight per volume) solution? (Atomic weights: Na = 23; 0 = 16; H = 1)

If a drug is given at intervals that are the same as its half-life, it will take about 5 half-lives to reach steady state.
If a drug is given at intervals that are the same as its half-life, approximately how long will it take the drug to reach steady state?

Normocytic- G6PD deficiency, Malaria
Microcytic- Iron deficiency, Thalassemia
Macrocytic- Chronic Liver Disease, Vitamin B12 deficiency
Hematology
Match the disease conditions with appropriate red cell size classification
1. G6PD deficiency, Malaria
2. Iron deficiency, Thalassemia
3. Chronic Liver Disease, Vitamin B12 deficiency

Atherosclerosis is a hardening of an artery specifically due to the build up of plaque. The risk to patients with significant atherosclerosis is that eventually a narrowing of the artery (stenosis) can cause a reduction in oxygen delivery to tissues and plaque rupture can lead to an acute coronary event.
Atherosclerosis is a hardening of an artery specifically due to which of the following?

Fatty casts contain refractile oval fat bodies or free fat droplets. They are derived from renal tubular cells, and may be seen in nephrotic syndrome.
Identify the urine sediment element: