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dimaraw [331]
3 years ago
9

Randomized controlled trials include: A. prophylactic trials. B. therapeutic trials. C. clinical trials. D. All of these are cor

rect.
Medicine
1 answer:
daser333 [38]3 years ago
6 0

Answer:

C

Explanation:

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The ______________ has the origin on the iliac crest and the insertion on rib 12 and L1-L4 vertebrae.
Elodia [21]

Answer:

Quadratus lumborum

Explanation:

Quadratus lumborum, commonly known as back muscle is a posterior abdominal wall muscle. The shape of the muscle is irregular as well as quadrilateral and broader below than above and is the the deepest abdominal muscle.

<u>The muscle originates by the aponeurotic fibers into iliolumbar ligament and internal lip of iliac crest for about 5 centimeters . It then inserts from the lower border of last rib (rib 12) for about the half of it's length and also by the four small tendons from apices of transverse processes of upper four lumbar vertebrae. (L1-L4).</u>

8 0
3 years ago
How many 10-gram tablets would you need to prepare 250 mL of a 1:5 solution?
Vladimir79 [104]

Answer:

We need 5 tablets.

Explanation:

We need to prepare 250 mL of a 1 : 5 solution.

When we are talking about solutions , '' a : b '' is known as the solution ratio.

Where ''a'' and ''b'' are integer numbers.

In our exercise, we have a 1 : 5 solution ratio. This means that we will have 1 gram of solute for each 5 mL of solution.

To calculate the mass of solute we can write the following :

\frac{1g}{5mL}=\frac{X}{250mL}

Notice that we equalize the solution ratio to the mass of solute ''X'' divided by the total volume of solution (250 mL).

Solving for X ⇒

X=\frac{(1g).(250mL)}{5mL} ⇒ X=50g

We found out that we need 50 g of solute.

Given that each tablet has 10 g of solute ⇒

\frac{50g}{10\frac{g}{tablet}}=5tablets

We need five 10-gram tablets to prepare the solution.

7 0
3 years ago
An outbreak of salmonellosis occurred after an epidemiology department luncheon, which was attended by 485 faculty and staff. As
Julli [10]

Answer:

28.2%.

Explanation:

Attack rate of any pathogen describes the speed or morbidity by which the new or emerging population is at risk by the attack of the pathogen.

The attack rate can be calculated by the formula:

Attack rate = people affected or at the risk of infection / Total population.

65 people are affected and 72 people also shows the symptoms.

Attack rate =  65 + 72 / 485

Attack rate = 137 / 485

Attack rate = 0.28.

The attack rate percent = 0.28 × 100 = 28%.

Hence, the answer is 28%.

4 0
3 years ago
Myelography helps in the identification and study of spinal distortions caused by lesions. True False
Kryger [21]

Answer: True

Explanation:

The myelography is a skeleton imaging technique that  involves the insertion of the injection in the spinal cord or the relative space near the spinal cord and the nerve roots by utilizing real-time x-ray technique called as fluoroscopy.

This technique can be used to study the distortions in the spinal cord caused by the cysts, tumor and lesions.

On the basis of the given description, the statement is correct.

7 0
3 years ago
Describe standardization and the roles of the normal curve, the Flynn effect, reliability (test-retest and split-half), and vali
Lady bird [3.3K]

Explanation:

To round a number to the nearest tenth , look at the next place value to the right (the hundredths). If it's 4 or less, just remove all the digits to the right. If it's 5 or greater, add 1 to the digit in the tenths place, and then remove all the digits to the right.

4 0
3 years ago
Read 2 more answers
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